I just put in a newly rebuilt 4L60e in my 06 Chevy Suburban - all kinds of excellent updates, including Borg Warner clutches, aluminum pistons, updated TCC regulator valve, and much more. Filled with MaxLife ATF, and it has a Hayden 679 cooler (bypassing the radiator).
... and yet I'm getting a p0894 "transmission component slipping" on the very first test drive, with noticeable RPM rev when upshifting. WHAT. THE. !@#$ ?
My understanding is that flare is usually caused by incorrect fluid, low fluid, high fluid level, wrong pressure (blocked cooler), or worn out transmission. Clearly not the last item, and the fluid level is perfect. That leaves only "incorrect fluid", or it is a pressure/flow issue.
I am completely puzzled on BOTH fronts here:
1) MaxLife is supposedly great stuff, many 4L60E owners running it with great results.
2) Hayden 679 cooler is also run by 4L60E owners, no issues.
Sure, the Hayden cooler is not advertised as LPD (Low Pressure Drop) like the TruCool has, but still... could this be the problem? Or is full synth really an issue here? The shop that did the rebuild says they use plain Dex III, which is lame considering you can't even get that anymore! I could painstakingly change the MaxLife out for Dex VI... but I seriously do not see WHY I should need to do that, as it is listed as Dex III and Dex VI compatible.
So confused, and very frustrated given the thousands invested here!
... and yet I'm getting a p0894 "transmission component slipping" on the very first test drive, with noticeable RPM rev when upshifting. WHAT. THE. !@#$ ?
My understanding is that flare is usually caused by incorrect fluid, low fluid, high fluid level, wrong pressure (blocked cooler), or worn out transmission. Clearly not the last item, and the fluid level is perfect. That leaves only "incorrect fluid", or it is a pressure/flow issue.
I am completely puzzled on BOTH fronts here:
1) MaxLife is supposedly great stuff, many 4L60E owners running it with great results.
2) Hayden 679 cooler is also run by 4L60E owners, no issues.
Sure, the Hayden cooler is not advertised as LPD (Low Pressure Drop) like the TruCool has, but still... could this be the problem? Or is full synth really an issue here? The shop that did the rebuild says they use plain Dex III, which is lame considering you can't even get that anymore! I could painstakingly change the MaxLife out for Dex VI... but I seriously do not see WHY I should need to do that, as it is listed as Dex III and Dex VI compatible.
So confused, and very frustrated given the thousands invested here!