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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 19, 2009
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Open Help Requests for GM
Help Request Answers
1954 Buick special 325CID missing vacuum lines VIN: 4NOTAVILAB
guys i need a little help,i'm working on a resto job,and whom ever started on this cut the vacuum lines off,and the shop manual does not have a vacuum diagram in it,so if any body has one or knows where i can get one,it would make an older guy that owns this c...
2007 Chevrolet Impala LS 3.5L No Start VIN: XXXWXXXKX7
Hi all: I'm trying to help a friend clean up a mess he has. His sister's car - 2007 Impala LS - was the victim of an attempted theft. The thieves smashed the column old school but were unable to get the car thanks to the Passkey III system. They tore up so mu...

Fixes & Summaries for GM
Fix/Summary Answers
1996 Chevrolet K1500 Suburban 5.7L No Start
Well, you guys were right about the fuel pump. I checked the pulse width with a noid light and it was definitely there even though my scanner said 0ms for pulse width. I also re-installed the fuel gauge and noticed that it would only start when the fuel pressu...
2002 Chevrolet Malibu 3.1L Tcc Apply
Thanks to all that replied to my help request, especially Justin from MI! His info was the key to nailing this one down. If anyone needs info/theory on how this system operates, it would behoove you to check his reply. After I loaded the TCC circuit to veri...
2004 Pontiac Aztek 3.4L Cuts out VIN: 3G7DBO3E34
The problem turned out to be the traction control module. Traction control is controled by injector pulse width. The traction control module thought it was loosing traction and cut fuel injector pulse width. A used traction/ abs module solved the problem. Than...
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