Are you in search of an Auto Transmission Repairer for Car Accident and Damaged Cars? Do your car overdrive light fixed? Is your transmission temperature displayed on or in need of repairs? Is your auto transmission shifting irregularly? Do you observe any form of slips? Do you experience harsh movements when shifting through gears? On the off chance that your reaction is YES to at least one of the inquiries, at that point your auto may need Auto Transmission Repair. Our Auto Transmission Repairs Services fixes all transmission repair problems including transmission rebuild, band adjustment and many more. Most Auto Transmission Repair administrations which may incorporate full transmission reconstructs normally last inside 3 days, while less difficult auto transmission repairs, for example, band adjustment can be finished in under 60 minutes.

We specialize fully in all categories of Auto transmission repair including repair services for car accidents and damaged cars. Over the years, we have acquired state of the art equipment, and also skilled technicians who are vast enough to repair any Auto transmission repair problems. Our readily available auto transmission repair specialists are always ready to take a look under the hood of any car accident or damaged car. They can handle all transmission repairs in a professional and timely manner. No matter your car transmission problem, we will help you hit the road once more. Our Auto transmission repair services over the years, has earned a reputation that cannot be matched.

We Provide the Best Warranty

We offer customers the best Transmission Rebuild warranty for damaged cars. Our promise to you extends over this period as we look to build a lasting relationship with all our customers.

Experienced Specialists in Transmission Repair Who are Tested and Trusted

We have been providing Auto Transmission Repair Services for car accident and damaged cars for a number of years now. There is a likelihood, we have repaired or rebuilt the similar auto transmission as yours before. Correct maintenance of your automobile can avert major repairs of your auto transmission. Self-Diagnosis and Possible Auto Transmission Issues

You can have all your car fluid level checked regularly, this should also include checking you auto transmission status. Poor engine performance could also lead to auto transmission problems

We Have Successfully Rebuilt Over 1000+ Auto Transmissions

Over the years, we have developed massive wealth of knowledgeable skills with auto transmission repair and rebuild of damaged cars. As a leading provider of Auto Transmission Repair Services with a skilled team Transmission Rebuild specialist, we can assist you in solving all your Auto Transmission needs.

Having an Auto Transmission Issues or you believe you need a Transmission Repair Specialist to check your car? Call Transmission Repair Specialist for a Free quote today.

What to Look for in a Transmission Specialists

When it comes to getting, work done on your car it is very important to pay attention to who you hire. There are a lot of good transmission specialist out there. However, with the good comes the bad as well. Therefore, below you can find a few tips to look at. These tips will help you choose a trustworthy transmission repair specialist.


This should be the first and foremost thing to look for when considering a specialist. Your transmission is not something that should be left to someone who does not have the experience. With a number of issues a transmission can encounter, make sure you choose someone who has experience in not only transmissions overall, but with your model as well.

The Three R’s

Ratings, reviews, and references are next on the list of importance. No matter how much experience someone has it is also a great idea to look into their past jobs. This will give you an idea of how they treated their old clients, how long it took to get the job done, and their overall satisfaction. There are many sources you can look into when it comes to the three R’s. Such as social media pages and even referral sites. Use the internet at your disposal to see how a company truly acts.

Special Offers

With the amount of transmission specialist outs there, go with one that has you in mind. Most trustworthy companies will offer deals to make you want to go with their company. Find someone who offers free consultations and estimates. These two things should never cost you. This is how they win your business.

Twin Transmission offers both free estimates and consultations, in addition to that, they go over the top with free towing if you choose to use them. Contact them today for the best deals in Charlotte, NC.

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Rebuilding Kits for Your Transmission

If your transmission needs to be rebuilt due to damage to it, it is important that you are making sure you understand how to fix the problem. One of the biggest missteps you can take is taking apart the transmission and not knowing what to do with it. The transmission is a delicate part of your vehicle and without it, your vehicle will not function correctly and you will find yourself stuck on the road or in your driveway.

Transmission rebuilding kits can help you rebuild parts of your transmission so that it functions much better than it did before. Typically, when you need to rebuild a transmission, you will need all of the essential parts as you need to replace them. The rebuilding kits come specified to your vehicle and it is vital that you choose the right kit.

Most kits will come with all of the seals, gaskets, and pieces you need both large and small. Before you begin working on the transmission itself, it is important that you lay out all of the pieces to the rebuilding kit to make sure they are there. Even if you are missing one small piece, you should not begin until you have it as that small piece may mean the difference between your transmission powering on and functioning or not.

Another thing you need to do is make sure you have all of the right tools on hand. If you do not have all of the tools, you will not be able to do a good job or even put some of the pieces on. The tools are not all expensive, but some of them do have a hefty price tag, so make sure you are ready from the start. One way to tell which tools you need is to look at the pieces of the kit as you will before you begin too. You can then match up socket numbers, screwdrivers, etc.

It is no easy task to rebuild your transmission so if you are inexperienced, you may want to hire a professional to do it for you. Someone who has experience rebuilding transmission will be able to complete yours quickly and without any mistakes. If you do choose to do it yourself, you need to be careful and make sure that you are always putting all of the pieces back where they need to go.

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Transmission Rebuild Kits

Transmission Rebuild Kits

If your transmission is in need of some maintenance, then you’re most likely going to need a rebuild kit. Unless you’d like to reuse old pieces and clean them yourself, this is highly recommended. When your transmission is being disassembled, old, dirty, or broken pieces need to be replaced for optimum performance from your transmission. These are just precautionary measures taken to avoid any future complications with your transmission. The last thing you want, after taking your car to the shop for transmission issues, is to have to come back again. These kits will come with certain pieces that aid in that optimum performance. Different pieces come with different kits, so you need to be sure which kit you’re buying. The pieces that kits will come with, depending on the one you ordered, include: bands, seals, steels, clutches, gaskets, O-rings, modulators, filters, bushings, and washers. Again, purchase a specific kit, because purchasing a kit without the pieces you need is an annoyance you could have avoided.


So, now that you’re sure of which piece you need, it’s time to head online and look up kits and their respective companies. As awful as it may sound, cheaper isn’t always better. Purchasing from big brand companies is a safer bet than purchasing from a company offering a cheaper product. You always get what you pay for and if you want to avoid another trip to the mechanic, then you should definitely invest in a quality kit. On top of having high quality products, they also offer quality customer service. Well, higher quality than a company you haven’t heard of. There’s a reason why they are big name companies and that’s because they’ve proven time and time again that their products and services are amongst the best. Another added benefit from purchasing from these companies is your kit should come with a warranty. If it doesn’t, then you can usually find a kit from a different company that offers one with the kit, or it can come as a feature that you can purchase.


You should expect to pay $50 – $300 for your kit. If you have a higher end or luxury car, then your kit will cost more. I definitely don’t recommend doing the disassembly of your transmission on your own, but if you feel up to the task then you could potentially save a lot of money. Depending on if you’re going to the mechanic for a repair or a replacement, you can expect to pay anywhere from $1000 – $3500 for the job. That is quite a bit more expensive than buying the kit and doing it yourself. However, if you are a novice when it comes to automotive repair, then you definitely run a higher risk of causing more harm to your transmission. Doing so will leave you with no other choice than to completely replace your transmission. Make sure you are completely prepared and ready if you take on the project yourself. If not, then call your local mechanic and set up an appointment. You can’t beat experience.

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What Causes Slipping?

What is Transmission Fluid?

When it comes to your transmission, it takes several components to keep it running smoothly. However, the most important part is the transmission fluid. It may not seem as though the fluid would be important, what with all the different gears and transfer of energy, but without being lubricated, all that will not work correctly.

It Works as a Coolant!

If you have an automatic, it is understandable with all the work your transmission is doing on its own that it may get overheated. However, thanks to automatic transmission fluid, it keeps everything cool. If for some reason, you smell a sickly-sweet burning smell you need to check your transmission fluid to make sure it isn’t getting low. If it is low, check for leaks, because transmissions don’t use up fluids like other parts of the vehicle.

Main Fluid Functions

It keeps all the gears and metal parts clean
It prevents grinding and metal shavings
Keeps not only transmission cool, but helps with the motor as well.
Helps transfer speed and energy
When to Change Fluid

Transmission fluid is unlike any other fluid in your vehicle. Unless you are having transmission issues, you should never really “need” to change your fluid. However, if anytime you check the transmission fluid and it is burnt or has shavings you should see a repair technician and see what the issue at hand is. If you feel as though your transmission fluid needs be changed just to be safe, consider around every 60,000 miles.

Twin Transmission in Charlotte wants to be your go to a specialist. If you have any questions, concerns, or issues, contact them today. With over 30 years’ experience in transmission repairs and rebuild you can’t go wrong. Not only do they offer free estimates and consultation, but free towing as well. If you find yourself with a transmission on its last legs, they’re there for you!

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How to Tell if Your Transmission is Failing

Your vehicle is prone to have an issue or break down completely. However, it can be hard to tell exactly where the issue is coming from. Whether it is the motor, transmission, or something completely different. Only a trained eye can really tell you exactly what the issue is and steps needed to fix it. However, there are some tips and tricks that can help you figure out where exactly the issue is coming from. First, we are going to tell you about common transmission issues.


Your vehicle’s motor isn’t the only part that can overheat; the transmission can occur as well. One way to tell if your transmission is overheating is a burning smell. Since transmission fluid is really sweet smelling it is easy to tell if it has a burnt smell because it is very distinguished. The main reasons for your transmission to overheat is low fluid levels or even using the wrong type of fluid. The transmission is like all the other parts of your car; they have to be lubricated correctly to run right.

Slipping Gears

This is ones of the most dangerous issues your transmission can have. Imagine driving down the highway, and your transmission slips out of gear, and you lose power. You will be stuck in the middle of highway traffic; this is completely unsafe. Therefore, if your transmission is slipping get it to a repairman as soon as possible. Your transmission is designed to stay in gear, therefore if the transmission is slipping into another gear or popping into neutral, there is a possibility that you could break a gear which can be rather costly.

The transmission is not something you should try to fix alone. Contact Twin Transmission today to get your transmission looked out before it gets further damaged. Just a phone call could save you thousands and even your life.


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Check Engine Light: Transmission Issues?

If you are having transmission issues, it is important to not tackle them on your own. The transmission is one of the most complex parts on your vehicle. Therefore, all transmission needs should be handled by a professional only. With the vast number of repairmen out there it is understandable to be a little overwhelmed. Below are some helpful tips to look for when choosing someone.


This is one of the first and foremost things you need to look for in a transmission repairman. With the way, the transmission works and all the different parts, you need to choose someone who has the experience to know exactly what is wrong. Not only will this ensure your transmission gets fixed correctly, but it can also save you money in labor time. This isn’t saying someone new can’t fix the issue, but you have better luck going with someone who has at least ten years under their belt.

Offers Specials to Help You

Believe it or not, some shops are not out to nickel and dime you. There are a few out there that are willing to offer you cheap or completely free help. Such as Twin Transmission in Charlotte. Not only do they offer free estimates, but they offer free diagnosis and towing as well. This can dramatically reduce your total bill. Towing alone is typically 200 dollars. On top of this already free stuff, they also run specials such as another 200 off on transmission rebuilds. All you have to do is a little shopping around, and you will find the best deal.

Twin Transmission can assist you with all your transmission needs. If you have a problem, they know how to fix it, from small repairs to entire rebuilds. Stop by or contact their shop today to get your transmission in the top working order.

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At its debut, the Honda Odyssey won the Japan Car of the Year Award (Special Category) and the RJC New Car of the Year Award. By September 1997, the Odyssey had sold more than 300,000 units, becoming Honda’s fastest-selling new car and breaking the Civic’s record. But, as time passed, the Honda Odyssey became more known for its transmission problems and need of transmission repair. Typically, Honda Odyssey’s between the year of 1999 – 2004 have the most transmission problems than any other year Odyssey.

About The Honda Odyssey Transmission & Typical Honda Odyssey Transmission Problems:


  • Owners of some 2007 and newer models typically report a distinct “judder” from their Odysseys when driving between 20 and 45 mph.
  • Drivers of these Odysseys notice erratic shifting, a flashing “D” light in the gauge cluster and sometimes the illumination of the traction control light and/or the check engine odyssey transmission repair charlotte nc

    1999 Honda Odyssey Transmission Problems
    Here are the most common transmission problems with the 1999 Honda Odyssey:
    * transmission failure
    * doesn’t shift smoothly
    * transmission solenoid valve failure
    * gears will not work, or work only part of the time
    * check engine & TCS lights on
    * transmission slipping from 1st to 2nd gear


2000 Honda Odyssey Transmission Problems
Here are the most common transmission problems with the 2000 Honda Odyssey:
* transmission failure
* rough shifting
* engine revs but car does not move, or moves slowly
* shifting problems

2001 Honda Odyssey Transmission Problems
Here are the most common transmission problems with the 2001 Honda Odyssey:
* transmission failure
* transmission slipping
* transmission warnings flash
* stalls out when in reverse
* tcs and engine lights on
* torque converter broke down

2002 Honda Odyssey Transmission Problems
Here are the most common transmission problems with the 2002 Honda Odyssey:
* transmission failure
* transmission disengages
* tranny slips, bangs when shifting
* losing gears
* sudden unintended acceleration
* shakes when shifting
* light keeps flashing
* code P07302
* code p0740

2003 Honda Odyssey Transmission Problems
Here are the most common transmission problems with the 2003 Honda Odyssey:
* transmission failed
* transmission slipppin
* won’t go into gear
* skips at highway speeds
* engine light is on
* shakes at highway speeds

2004 Honda Odyssey Transmission Problems
Here are the most common transmission problems with the 2004 Honda Odyssey:
* Gears Slipping
* Car will not move
* Transmission fluid leaking
* Car will not move out of park gear

If you are the owner of a Honda Odyssey and are experiencing any of the transmission problems listed above, you may be in need of a transmission repair, transmission rebuild, or transmission overhaul.

Rebuilding the transmission is sometimes the only option to restore your transmission to its best working ability. Twin Automotive & Transmission of Charlotte has been rebuilding Honda Odyssey transmissions for over 30 years. 

Our expertise, combined with the longest transmission warranty in Charlotte NC, Twin Automotive will have your vehicle back on the road in no time. Contact us here or call 704-821-3460 for a free diagnosis of your Honda Odyssey Transmission repair.

Honda Odyssey Transmission Repair Charlotte NC 052011Is your Honda not shifting properly? Or maybe it won’t move? Honda transmissions are well-built and focused on performance. From the race track to the suburbs, Honda has a transmission that is built to handle it all.

Sadly, Honda Transmissions are also one of the top vehicles for transmission problems, transmission repair and transmission failure. Twin Charlotte is Charlotte’s best transmission repair shop and specialize in all types of transmission rebuilds, including Honda Transmission Repair and Rebuild.
Common Vehicles Types – Honda Transmission Repair

1) Honda Odyssey – Although a great family vehicle, the Honda Odyssey is known for its transmission problems. Rough shifting, gears won’t shift and transmission leaks are some of the most common transmission problems found in the Honda Odyssey.

2) Honda Accord – Torque Converter problems, not shifting into gear and transmission hesitating are just some common transmission problems found in the Honda Accord.

3) Honda Civic – The 2001 Honda Civic comes in line right before the 2002 Ford Explorer (often referred to as the ‘exploder’), topping the list for one of the top vehicles for transmission repair. The Civic has many complaints regarding the transmission failing to engage, gears not shifting or rough shifting.
Honda Transmission Rebuild Charlotte NCTop Symptoms for Honda Transmission Repair / Rebuild

1) Torque Converter
It is important to fix transmission problems as soon as possible because allowing a problem to linger can cause permanent damage to your car. Most of the complaints regarding Honda transmission failure is related to the torque converter. This happens when the engine will rev up, but the car cannot move. This can cause the transmission to burn up, which requires total replacement

2) Gears Slipping
Be aware of your car slipping into neutral. Some Honda owners have also reported that the car’s transmission pops randomly into neutral, which causes grinding when traveling at high speeds. Seek maintenance and repairs as soon as possible. These problems can damage or even ruin your transmission, so if you are having transmission problems it is important to have your car serviced as soon as possible.

3) Transmission Fluid Leaks
Check for fluid leaks. If your Honda is leaking a deep red fluid, this is transmission fluid. It may be a main seal leaking or it could be leaking from the transmission housing. The only way to know what seal has failed is to get underneath the vehicle and check for the source of the leak.
Transmission problems will continue to worsen as they are neglected till eventually the car will stop, failing to shift into any gears and possibily endangering anyone who may be driving when the gears are lost. Some types of transmission repair are simplier than a complete transmission rebuild.

Known as the Transmission King of Charlotte, Twin Automotive is the largest rebuilt Transmission repair shop in Charlotte NC. We offer Charlotte’s Longest Transmission Rebuild Warranty. Our dedication to rebuilding transmissions with the highest quality, along with our outstanding customer service has led widespread recognition in the automotive repair industry.

Do you have a transmission problem?
Contact us for a free diagnosis or estimate.

What is a 4L60E Transmission?

The 4L60-E is an automatic shift, four-speed overdrive, longitudinally positioned transmission. It has been considered to be the best rendition of the finest overdrive automatic transmission ever produced. The 4L60-E is found in nearly every GM rear-wheel-drive application, including the C/K Truck, Sonoma, Jimmy, Tahoe, Yukon, Astro, Safari, Suburban, Bravada, Firebird, Camaro and Corvette

Before the Late 4L60-E transmission, there was the Turbo 700R, which was introduced in 1982. The 4L60-E is GM’s successful continuation of the ever-improving 700R4 (aka “4L60” since 1990), introduced in 1982. The 4L60-E is the “E”lectronically shift controlled version of the 4L60. The Late 4L60-E was released in 1997 in and fully phased into wide use through GM by 1998 in both RWD car platforms (including the C6 Corvette) and trucks in both 2wd and 4wd configurations. (Most transmission models are not distinctively noted with the “E” since all GM transmissions are now also controlled electronically.)

The 4L60E Transmission has went through many changes/improvements over the years since it first came out in 1982. From bells to valve bodies, added solenoids, changes in pump and convertors. The 4L60E transmission weighs 146 pounds dry, and 162 wet. It requires 8.4 quarts (9.64″ torque converter) or 11.4 quarts (11.81″ torque converter) of transmission fluid,

Top 30 Common 4L60E Transmission Problems and Repair

Below is a list of common transmission problems with the GM 4L60E Transmission and possible solutions to repair. Although you may have some of these symptoms / problems with your 4L60E Transmission, the repair solution may differ. This list is merely a guide to the possible solutions. For a complete diagnosis on your GM 4L60E Transmission problem, contact us for a Free Diagnostic.

1. Slow, slipping or no reverse: “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell. It is possible to remedy a fluid problem by removing the checkball from its cage in the case in the rear of the transmission may help (must remove valve body), or adding a high-viscosity additive or other seal restorer product. May also have worn boost valve (can replace in the pan).

2. 1-2 shift does not happen at WOT (Wide Open Throttle) until you let off the gas: Best case: try replacing the TPS. Middle case: leak in the 2nd gear apply circuit (servo assembly or 1-2 accumulator). Double check by using the pressure gauge and watch for a big drop when the PCM commands 2nd gear. Worst case: poor line pressure rise (see below).

3. 1-2 Shift shudder at WOT (Wide Open Throttle); delayed or abnormal 1-2 shift; There’s a problem ONLY on the 1-2 shift: 1-2 accumulator piston cracked or stuck cocked in the bore. Check the yellow spring inside the accum housing for breakage. Also, if the accumulator housing walls are scored, the housing must be replaced.

4. 1-2 shift is delayed and harsh, may not shift into OD: TPS needs to be checked for smooth and linear electrical response over the entire range of motion. If not, this must be replaced.

5. Trans does not upshift out of first, speedometer reads zero at all times: Could be VSS failure. Rear of transmission needs to be fixed. Transmission needs to come out in order to access VSS.

6. No 3rd or 4th gear: “3-4” clutches are worn out: Needs to be removed and rebuilt. The car is safe to drive (in 2) until you can get it fixed.

7. Sudden grinding noise with no prior warning primarily in 2nd gear, behavior in reverse may be abnormal: sunshell is fractured. Must be removed and rebuilt. Try not to run or drive the car or further damage could result.

8. 1st and 3rd only, no 2,4 or R: Sunshell is fractured or splines are sheared off. Transmission must be removed and rebuilt. Try not to run or drive the car or further damage could result.

9. No 2nd or 4th gear. 2-4 band is slipping: Servo seals may be damaged. Otherwise, 2-4 band is worn out. Transmission must be removed and rebuilt.

10. Trans shifts into gear harshly, car feels sluggish off the line, No 1st, 4th or TCC lockup available, Manual 2nd, 3rd and Reverse are only available gears, CEL is on: transmission is either in limp-home mode or has lost electrical power. If there are lots of error codes in the PCM, check the underhood fuse that powers the transmission, and if it pops again, look for a short in that circuit like an O2 sensor harness touching exhaust. Otherwise, check PCM codes for a particular fault in the transmission causing the PCM to put it in limp-home mode.

11. No 1st or 4th available; trans shifts 2nd to 3rd by itself in D or OD and locks the converter: ShiftA solenoid failed Or a wiring problem from PCM to trans or PCM. Needs diagnostic testing.

12. Car goes into gear but feels very sluggish like the brakes are dragging, but it will roll easily (starts out in 4th gear), you manually shift to 2 to get it moving, once it’s moving you put it back in OD and the car shifts 3rd to 4th on its own and locks the converter at the appropriate time: ShiftB solenoid failed: A wiring problem from PCM to transmission or PCM.

13. No TCC (Torque Converter Clutch) lockup: Brake pedal switches improperly adjusted (always on), TCC solenoid failed, TCC clutch worn out (must remove transmission and replace TC).

14. TCC (Torque Converter Clutch) always locked: TCC apply solenoid circuit shorted to ground, TCC solenoid blockage, or TC broken (must remove trans and replace TC).

15. Horrible noise in 4th and feels like the brakes are on: overrun clutches are applying due to a cracked or leaking forward piston. Overrun clutches will be worn out after 30 seconds of this behavior. Car can be safely driven in D. Transmission must be removed and rebuilt.

16. Soft shifting, gradual performance degradation: Poor line pressure rise due to leaking boost valve, clogged EPC filter screen, failing EPC solenoid, or worst case: leaky seals throughout. Seal restorer may fix last problem, but probably remove and rebuild needed.

17. No forward movement in OD or D, but L2, L1 and R work: Forward sprag is broken. Transmission must be removed and rebuilt. Try not to run or drive the car or further damage could result.

18. Extremely harsh shifts from P or N, normal shifts at WOT: EPC (Electronic Pressure Control) solenoid failed. Fix as soon as possible or hard parts will eventually break.

19. Loud bang, grinding sound, loss of all gears, and a binding driveshaft: Snapped output shaft. Try to wiggle driveshaft – if more than 0.020″ play, that’s the sign. Must be removed and transmission rebuilt.

20. Trans seems noisy when moving in 1st and Reverse, noise goes away instantly if you shift to N or the transmission goes into 3rd gear: Reaction planetary is worn out due to high miles or insufficient lubrication. Not a critical failure, but not a good sign either. Transmission must be removed and rebuilt, sooner rather than later.

21. No movement in any gear: pump failure, or total loss of fluid. Remove transmission and rebuild, or refill pan and find the leak. If out of fluid, avoid running the engine until the transmission is refilled to avoid pump damage. To check for pump failure, check fluid level with the engine off, then start the engine and recheck fluid level. If level does not go down when engine is running, the pump is broken.

22. Transmission does not shift automatically, only manually. New PCM, check wiring, check other sensors such as VSS and TPS.

23. 3rd gear starts, can manually shift through all gears. When car has been turned off for a bit, then back on it will run normally.: VSS dropoff w/ Hi-stall converter. The rpms are too high, but VSS is showing no movement. Happens after a tire burning take-off. Doesn’t store a code, will not throw a CEL (I’ve heard that it will store a code if it happens 3 or more times). Cure: Reprogram PCM for VSS dropoff.

24. Fluid leak out of the front of trans where the converter connects; partial or full loss of movement: Front pump bushing walked out. Transmission must be removed and rebuilt. May have to replace converter also if hub is scored. Note that a leaking front seal usually means the bushing is walking out.

25. Torque converter shudder in 4th while lockup is engaged; problem goes away when the brake pedal is pressed slightly to unlock converter: Need to verify line pressure, and provided no valves in the TCC (Torque Converter Clutch) hydraulic circuit are worn, replace the torque converter.

26. Shift suddenly become very hard. When going from park to either reverse or drive it slams into gear. 1-2 and 2-3 shifts are also harsh. All gears seems to work. Problem may be intermittent: Check TPS for smooth electrical response. If the response is jumpy or erratic at all, replace TPS (Throttle position sensor).

27. All fluid pumped out through the vent tube: Plugged cooler line. Flush the transmission cooler and cooler lines. Also could be overfiled transmission.

28. Car acts like it’s in OD in neutral, car is locked stationary in R, engine feels loaded in P, all four forward positions work fine: Transmission must be removed and rebuilt. Internal crossleak feeding the forward clutches all the time. Most likely a cracked input housing, or cracked forward piston means forward clutches are fused together. Car can safely be driven gently in forward gears until the repair.

29. Needle bearings in the pan, first gear and/or reverse may be noisy: Either a torrington bearing or a planetary bearing is on its way out. Transmission will eventually die a loud, catastrophic death. Cheaper to rebuild now (saves further damage to hard parts), but requires removal and rebuild. It is drivable until it breaks.

30. 1-2 or 2-3 shift is slow/soft above part throttle: Transmission is on its way out. Transmission must be removed and rebuilt.

Twin Automotive & Transmission, Charlotte’s Transmission Specialist, provides free transmission repair diagnostics (diagnostic is free with repair of the transmission). Twin Automotive offers Charlotte NC ‘s Longest Transmission Rebuild Warranty – 3 Years / Unlimited Miles.

The above top 30 common problems with the 4L60E Transmission and possible solutions for repair are merely a guide. Although you may have a similar problem as those listed above, the repair may differ based upon a visual inspection of the vehicle. Transmission problems only worsen with time. If you have any problems with your GM 4L60E Transmission, it is best to speak with a professional transmission repair expert. Still looking for answers?

Check out this INFOGRAPHIC: Five Common 4L60-E Transmission Problems