View Single Post
  #3  
Old 11-29-2012, 03:35 PM
f5fstop's Avatar
f5fstop f5fstop is offline
Hummer Guru
 
Join Date: Jul 2005
Location: Idaho
Posts: 4,744
f5fstop is an unknown quantity at this point
Default Re: Check Engine & Trans fluid questions

I agree t-stat, especially on a vehicle with that many miles.

As for the trans....

Well, considering how hot the trans fluid in the H3 can run, I would guess at 107K the existing fluid is pretty well worn out. And with that many miles, I would not only recommend getting new fluid, I would recommend a backflush to get it all out. A drain only removed about one-third of the fluid, a backflush removes all the fluid.

JUST MAKE SURE, that it is done by a reputable place (suggest a dealer) who uses Dexron for the flush. Many of the aftermarket quick lube places uses a cleaner and the cleaner can cause more problems then not doing the flush. A reputable place will flush the trans with the recommended fluid for the trans (Dexron VI); thus inducing no foreign liquid into the trans.

Again, I suggest a dealer just because many use the Kent Moore trans backflush took which is highly rated.
Reply With Quote