It's Not a Flat

astro
chevrolet

#1

I own a 2003 AstroAWD. When making a turn at slower speed it feels like I have a flat tire in the passenger rear tire. I have taken it to several mechanics but no one has fixed or figured out what the problem is. Mechanic #1 said I needed a new differential. Did not do it, but he offered to disconnect the awd so I would only have 2 wheel drive. Did not do that either. Mechanic #2 was the dealer he replaced a tie rod in front passenger, that did not fix what I am feeling. #3 said that my tires were not about the same age or wear pattern. Got 4 new tires. #4 replaced the clutches in the differential. #5 new brakes, did not fix it either, then took the differential apart again. We are stumped and I am running out of money.


#2

It may be a problem with the AWD - is there a center differential? Did they put the correct fluid in the rear diff?


#3

I believe there is a TSB about this, it’s a transfer case issue and there is a up dated fluid for the transfer case. Have the transfer case fluid changed.


#4

this was the problem, funny when you go for that oil change no ever mentioned that this needed to be done faithfully every 30000 miles. I asked around and there were several who didn’t even know what I was talking about. Thanks for the help