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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 12, 2013
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Open Help Requests for GM
Help Request Answers
2000 Buick Century Custom 3.1L engine noise VIN: 2G4WS52J0Y
when cold engine rattles bad, it does get alittle better when warm. Worst one i' ve seen
1985 Chevrolet K10 Silverado 5.7L coil VIN: 1GCEK14H0F
I tested coil on this truck and it tested bad. During the replacement I noticed that the coil in cap's black ground wire was fastened directly to the coil steel layers which I believe is correct, but it also had no ground strap installed which would have had t...

Fixes & Summaries for GM
Fix/Summary Answers
2007 Chevrolet HHR LT 2.4L No Start, no crank VIN: 3GNDA33P87
It's amazing what happens when we as technicians finally get the WHOLE story. Vehicle was jump started by customer, and customer reported seeing a bunch of sparks at the underwood electrical center. With the UEC removed, a double-check of BCM outputs to the U... Trouble codes: B1370 (device ignition 1 circuit short to ground).
2005 GMC Sierra 3500 SLT 6.6L Cooling System VIN: 1GTJK39205
Loosely this is called Fixed. I pulled the recovery bottle off and Vacuum and Pressure tested it to look for a leak as I was wondering if it had a crack from the high pressure due to cap failure. No leaks. I did this cause the hose ends were wet. Removed c...
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