Contrary to misconception there are times GM does recommended a flush. Our general concensus on this forum is it is not recommended. We've thoroughly discussed the issue many times in the past.
Quote:
|
Originally Posted by BNaylor
Other than a general concensus in this forum probably not. There have been a lot of horror stories. Some had success with flushes. But first the data should be split or differentiated between what type of flush are we referring to? Technically there are two types performed or even recommended by GM. There are different flush fixtures used by GM dealers, trans shops and the fast lube places. GM only recommends two specific types.
They recommend one brand of fluid exchanger (Wynn Transerve) and one brand of flusher (Kent-Moore). Then on the flushing it was recommended only if there was a transmission failure or problem, otherwise not for routine maintenance. Also, GM only recommends a certain approved flushing detergent to encapsulate fine particles which is used with the real flush machine. The fluid exchanger which is technically not a flusher will not remove particles because it is low pressure and uses the tranny's pump.
I believe the bottom line is this, GM only recommends flushing if there is a problem, otherwise they only recommend a fluid exchange using the Wynn Transerve or similar probably to get all ATF out to include in the torque convertor which is really only for convenience and ease of maintenance.
Most of the flushes ever mentioned are not real flushes but fluid exchange. The fluid exchange doesn't sound too kosher to me and IMO a pan drop consisting of replacing at least 7.5 quarts of the ATF and screen filter is better for obvious reasons.
http://www.automotiveforums.com/vbul...ght=flush+kent |