Chevy Express/GMC Savana

654 messages,  Last post on Jun 24, 2012 at 9:26 PM

You are in the Chevy Express & GMC Savana Forum.

What is this discussion about? Chevrolet Express, GMC Savana, Chevrolet Express Cargo, Chevrolet Sportvan, Chevrolet Chevy Van, Chevrolet Chevy Van Classic, Van

#651 of 654 Re: 2003 ex. 3500 check engine light at 70 mph [carpetguy1] by wikinger

Jun 24, 2012 (5:49 am)

Replying to: carpetguy1 (Jun 23, 2012 1:38 pm)
Hi, check ur transmissionoiltemprature!
Check Transmissionoil! Change it, or refill to max!

#652 of 654 Re: 2003 ex. 3500 check engine light at 70 mph [carpetguy1] by tbb2

Jun 24, 2012 (11:13 am)

Replying to: carpetguy1 (Jun 23, 2012 1:38 pm)
I do not have personal experience with this but have a recall of reading something about oil pump problems that occurred under load ... like when you are moving 70 MPH. Checking your engine and transmission oils and filters are the first step. If they are okay I would then look at what is needed to inspect the oil pump.

#653 of 654 Re: 2003 ex. 3500 check engine light at 70 mph [tbb2] by carpetguy1

Jun 24, 2012 (9:25 pm)

Replying to: tbb2 (Jun 24, 2012 11:13 am)
THANKS!!!

#654 of 654 Re: 2003 ex. 3500 check engine light at 70 mph [wikinger] by carpetguy1

Jun 24, 2012 (9:26 pm)

Replying to: wikinger (Jun 24, 2012 5:49 am)
THANKS!!!
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