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Prev Professional Automotive Repair Technical Discussions for May 20, 2013
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Open Help Requests for GM
Help Request Answers
1999 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52K0X
Thanks in advance everyone. This car has a hard p0440 failure. Camein w/light on and the tech2 evvap service bay test confirms this. customer has no driveability issues besides excessive vacuum in tank when filling up. Smoke tested ok, and all evap system sole... Trouble codes: P0440
2008 GMC Canyon SLT 3.7L Starting VIN: 1GTDT19E88
This Canyon came in on the hook over the weekend, with no start. Check battery and all fuses, no power going to the starter relay, can jump across the relay and make the starter work. scaned had codes u0100 u1000 c0899 u1064 could not communicate with the ecm ...

Fixes & Summaries for GM
Fix/Summary Answers
1990 Chevrolet Corvette 5.7L Electronic VIN: 1G1YY3382L
Thanks to all the people who replied for my question, finally a decided to install a rebuild computer from auto parts and the computer fixed the problem. thanks again every body.
2000 Chevrolet Silverado 1500 4.8L EVAP Leak VIN: 1GCEC14V3Y
I had several replies to this post, much suggesting that I repeat what I had already done. The pressure sensor was replaced twice without any changes the canister assembly was replaced also without change, The system was smoke and pressure tested without any r...
2004 Chevrolet Silverado 1500 5.3L ABS module VIN: 1GCEC19T24
Long story short, it was the wrong rear end. These take a 3.08,3.43,or 3.73 ratio. This one required a 3.73 and had a 3.08. The reason I couldn't get the pcm to program was the aftermarket radio was wired into the bus line along with a viper security system...
2006 Chevrolet Silverado 1500 LS 4.3L MIL Lamp VIN: 3GCEC14X46
Thanx for all your replies. The thought that some used car lot stuffed tape inside is intriguing, except with the board loose, there was barely an eighth of an inch to shine the light in, as the gages keep the front from coming off. (Can you pull the pointer...
2007 Chevrolet Suburban 1500 LTZ 5.3L 4 4 wheel drive, stabilitrac VIN: 1GNFK16307
The customer called twice to say problem never returned so they wanted to hold off on any repairs. It was ok for six months the last time it occurred, so any future progress and I will follow up. Thanks again to all
2009 Chevrolet Silverado 2500 HD LTZ 6.6L Belt squeal VIN: 1GCHK63669
Still have no idea on this truck. Tried a dealer belt and called the customer after he had it back a couple weeks and he is now in "turn up radio mode". Wish I had more info to share but unfortunately, it sounds like this is a problem that even the dealers are...
1999 Pontiac Sunfire SE 2.2L Drl
It turned out that there was a loose connection behind the fuse panel under the dash and there was a broken wire under the battery that was keeping the high beam indicator on.
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