4L60E maintenance?

nitro498

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Bought a cheap fixer-upper 07 Tahoe with 250K On the odometer. The engine is getting freshened up. My question concerns the trans, a 4L60E. As far as i know there were no problems concerning the trans.

Other than replacing front/ rear seals what maintenance Should I perform to this transmission?
 

wsteele

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I would drop the pan, drain the fluid that will drain in that procedure and replace the filter. Change it again at 25-30K and 30K thereafter. :)

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Geotrash

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Bought a cheap fixer-upper 07 Tahoe with 250K On the odometer. The engine is getting freshened up. My question concerns the trans, a 4L60E. As far as i know there were no problems concerning the trans.

Other than replacing front/ rear seals what maintenance Should I perform to this transmission?
Has it been rebuilt once already? I don't think I'd worry about those seals until they start leaking. The 4L60E is a good transmission but in my experience it's not as stout as the 6L80. I had one in my '02 Suburban, and it needed a rebuild at around 150K. I sold it to a friend and he has 280K on it now and it's getting ready to need rebuilding again (slipping). My '07 XL Denali with the 6L80 has 220K on the original transmission now, with a fair amount of it towing.

If I were in your shoes, I'd do the maintenance @wsteele suggested and set aside some money in a Capital One savings account for transmission repair/rebuild when the time finally comes. If it never does, you can put it toward a down payment on your next one. :)
 

Rocket Man

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Has it been rebuilt once already? I don't think I'd worry about those seals until they start leaking. The 4L60E is a good transmission but in my experience it's not as stout as the 6L80. I had one in my '02 Suburban, and it needed a rebuild at around 150K. I sold it to a friend and he has 280K on it now and it's getting ready to need rebuilding again (slipping). My '07 XL Denali with the 6L80 has 220K on the original transmission now, with a fair amount of it towing.

If I were in your shoes, I'd do the maintenance @wsteele suggested and set aside some money in a Capital One savings account for transmission repair/rebuild when the time finally comes. If it never does, you can put it toward a down payment on your next one. :)
Capitol One? Do you work for them or something?:crazy:
 

Geotrash

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Capitol One? Do you work for them or something?:crazy:
Lol. No, but I do live in Richmond where they're based :) But I've used them for years since long before I lived in Richmond and there is one feature of their savings accounts that's absolutely awesome for me: Access to my money is *not* instant. There is a delay of a few days to have the money transferred to my checking account at my credit union, and that solves the issue of buying stuff immediately. By the time the money would hit my account, the urge has already passed. That = more savings :)
 

kbuskill

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Lol. No, but I do live in Richmond where they're based :) But I've used them for years since long before I lived in Richmond and there is one feature of their savings accounts that's absolutely awesome for me: Access to my money is *not* instant. There is a delay of a few days to have the money transferred to my checking account at my credit union, and that solves the issue of buying stuff immediately. By the time the money would hit my account, the urge has already passed. That = more savings :)

This reminds me of the guy who went to his doctor because he had a bad cough.

The doctor prescribed him a strong laxative.

He asked the doctor if that would really cure his cough and the doctor said "it won't help your cough at all, but you will be afraid to".
 

CaptainAmerica1

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Drop the pan.
Change the fluid.
While you have the pan off and iff you feel comfortable, consider swapping the accumulator pistons with sonnax pinless pistons, rebuild the shift solenoids, replace the separator plate and swap the check balls with Imidize check balls, new separator plate gaskets, corvette servo, billet 4th gear servo.
Consider installing a trans cooler.
 

nitro498

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Drop the pan.
Change the fluid.
While you have the pan off and iff you feel comfortable, consider swapping the accumulator pistons with sonnax pinless pistons, rebuild the shift solenoids, replace the separator plate and swap the check balls with Imidize check balls, new separator plate gaskets, corvette servo, billet 4th gear servo.
Consider installing a trans cooler.
Thx Captain. Is there a kit that includes most of the parts you mentioned?
 

MO VietVet

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Lol. No, but I do live in Richmond where they're based :) But I've used them for years since long before I lived in Richmond and there is one feature of their savings accounts that's absolutely awesome for me: Access to my money is *not* instant. There is a delay of a few days to have the money transferred to my checking account at my credit union, and that solves the issue of buying stuff immediately. By the time the money would hit my account, the urge has already passed. That = more savings :)
Before giving all this money wisdom, did you happen to "Sleep at a Holiday Inn Express" the night before? :cool:

Like has been said, drop the pan and inspect the fluid for debris and any metal and change the filter and add fluid to top off and check fluid level again after a road test. If that trans has not been built before, did you get a CarFax?, it may be close and start saving. Hell, it may look pristine when you get in there. Good luck.
 

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