I’ve used billet servos in mine, and it significantly improved my shifting. Worth the investment, for sure!
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Can anyone explain the difference between a 4L60E and a 4L65E? I’m trying to check compatibility for upgrades.
The 4L65E is essentially a beefed-up version of the 4L60E, with stronger internals. If you’re planning upgrades, the 65E’s parts can sometimes fit, but not always directly.
Recently, I tuned my 4L60E with a custom chip. The shift points changed dramatically! What are some other tuning options people have tried?
I also recommend a speed sensor recalibration. It has a big effect on how the transmission performs in various situations!
I recently replaced my solenoids after having shifting issues. If anyone’s having problems, it might be worth checking those out first.
Exactly! My shifting issues were cured with a solenoid change too. They can wear out over time.
I love how supportive this community is! It’s great to share upgrades we’ve done. Just a question - has anyone attempted a DIY rebuild?
I tried it once! Let’s just say, I ended up paying a pro. But at least I learned a lot about how they work!
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Well, you definitely made some bold moves there! But it’s true, experience teaches you so much. What’s the craziest upgrade you’ve done to your 4L60E?
I’ve had my share of 4L60E issues. Shifting problems are the most common, especially if you notice hard shifts or slipping. Regular fluid changes can help mitigate some of these problems.
Absolutely! I’ve also experienced erratic shifting. A scan of the TCM (transmission control module) often reveals faults that can be fixed without major repairs.
Fluid leaks can be a headache! I once found mine leaking from the pan gasket. Replacing the gasket solved the issue quickly. Don’t ignore fluid levels—you’d be surprised how often that resolves shifting issues.
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Great tip! I’ve also found that using a thicker fluid can sometimes help with minor leaks.
Anyone else had problems with overheating? My 4L60E tends to run hot when towing. I added a cooler, and it made a significant difference, especially during long trips!
That’s a smart move! I’ve definitely noticed my transmission behaving better with added cooling. It’s a must if you’re going to push your rig.
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I’ve had success with recalibrating the TV (throttle valve) cable. It fixes some shifting issues. If it feels late or harsh, it’s worth a shot!
Good point! I had a rough shift and didn’t think about that until I adjusted it. Making small tweaks can really help.
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Is it just me, or do 4L60Es have a weird tendency to go into limp mode? Mine did, and it was just a dirty connector. A little cleaning and it was back to normal.
I’ve encountered that too! Limp mode can be alarming, but simple maintenance is sometimes all that’s needed.