Quote:
Originally Posted by j cAT
the transmission fluid in these pre 2006 vehicles is dexron III . many owners like you have this failure worn out transmission because they did not replace the fluid with the new GM approved DEXRON VI. dexron III is no longer the approved fluid for your vehicle. the reason is GM had too many warrantee failures so they had to use a synthetic blend with a slightly lower viscosity. this then resists turning into acid as the dexron III quicky does.
the fluid is checked with the vehicle being driven about 10-20miles at normal speeds. then parked on level ground. with the engine running and the shift selector in park.
use a clean cloth and wipe stick clean. check level several times to ensure its at the same point on stick ...with dirty contaminated fluid this is usually easy to see the level. this should be below the full mark but above the add mark.
if the fluid has air bubbles this is because its overfull. more fluid does not repair a tranny but those bubbles will rapidly destroy your transmission. this is because the fluid cannot be compressed to provide proper pressures. then you get slippage and rapid destruction.
you will need 2,ooo or so for a rebuild. I am sure you will find many shops with a good amount of work experience with these transmissions.
lots of failures with the dexron III and owners believing the vehicle manual which states you don't have to replace fluid every 30-40,ooomiles.
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Thanks I knew I was pushing my luck on this mileage. I did not know about the advice to get dex III changed to dexVI, I somehow missed the conversations on that (those threads). I always get good help here and perhaps don't check in as often as I should in the past couple of years.
I did find a used trans for $400 but then you don't know what you got till it's in? then you got to find an installer. Gee! I just want my 57 chevy w/powerglide and 283, that was a crazy sell in my youth...who knew? Thanks again for all the help you provide here in this forum.