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Professional Automotive Repair Technical Discussions for December 10, 2012 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Buick Rendezvous CX 3.4L starting VIN: 3G5DB03E12 this vehicle has been in several times for this issue. when i get it it does not give me any problems, until now. fuel pressure is on the money, has spark. only thing that hasnt been checked is injector pulse due to when i get ready to take the plenium off it ... |
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| 1999 Chevrolet Tracker 2.0L Mechanical VIN: 2CNBE18C4X i am reposted this auto. it came in with severe engine vibration when put in gear. thought i fixed it. i found timing was off one tooth. chain was loose. put new timing chain and geats and tenior on. now vibration is worst. so mitchell does not show oil pump h... |
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| 1999 Chevrolet Camaro Z28 5.7L Fuel Pressure VIN: 2G1FP22GXX Towed in for no start, no fuel from tank, no sound but power, replaced pump with delco. Towed in after a week and found that the fuel line in tank connected to outlet pulled from oulet got another delco mu1730 and a week later the same. Tested fuel pressure af... |
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| 2006 Chevrolet Silverado 2500 HD LT 6.6L ignition,M shift ind. VIN: 1GCHK23D96 vehicle came in for other repairs/maint.customer complained shift problem acted up once. I noted battery ind. on with key out of ignition (this was verified yet intermittant)with dtc p2961,other modules and history codes also recorded,too many to list.cleared ... |
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| 2006 Chevrolet Impala SS 5.3L ses light on VIN: 2G1WD58C56 the one thing the codes have in common is underhood fuse emissions 2 , is blown. and new fuse blows in a few miles.been reading and unplugged all fan and ac relays and fans and deactavation Solenoid wires hoping to see something burned or damaged. no found. wo... Trouble codes: P0102, P0480, P0081, P3401 |
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| 2010 Chevrolet Express 3500 6.0L hard start After fueling van it hard starts, (long crank time). If you disconnect purge line problem goes away. This only happens after you put gas in tank. Started getting evap codes before this problem came about. This van does have 300000 miles on it. When you run eva... Trouble codes: P0496 (system flow during non purge), P0172 (system rich bank 1), P0175 (system rich bank 2) |
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| 2005 GMC W4500 Forward W4S042 5.2L sart up VIN: J8DC4B1665 this vehicle will not start on its own. we have had to shoot starter fluid in the intake and then it will run and stay running. but as soon as it is turned off it will not restart hot or cold. the ecm was installed by order of the customer, he was told it was ... |
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| 2011 GMC Sierra 3500 HD WT 6.0L No Start VIN: 1GD312CG1B Need help with this one. We pulled the fuse box to gain access to a wire that we are hooking up for an aftermarket system we are putting on. When we got everything back together and went to start the vehicle it cranked and started but only ran for about 1 seco... |
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| 1990 Pontiac Grand Prix LE 3.1L Hesitation, Stall VIN: 1G2WJ14T1L I am working on a 1990 Grand Prix 3.1L. This car drives down the road just fine but sometimes it stalls when coming to a stop and hesitates/stalls on acceleration. If you step it down hard it will hesitate and then take off strong. The check engine light is no... |
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| 2003 Pontiac Grand Am SE2 2.2L starting VIN: 1G2NF52F83 I was handed somebody problem.Its been worked on all ready appears to have had head gasket repalaced,don't know anything more than that key also looks new. The problem is when you start the car and shut it off and try too restart within a couple seconds it jus... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1993 Cadillac DeVille 4.9L distributor gear VIN: 1G6CD53B8P Thank you for all the help and replies, I looked at the cam gear closely while a fellow tech turned the engine over with breaker bar. On top dead center the cam gear didn't look too bad but 180 degrees from that it looked horrible with chipped teeth and some s... |
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| 1994 Chevrolet S10 LS 4.3L No Start VIN: 1GCDT19W8R First off, thank you all for your suggestions! The vehicle is fixed, fuel pressure tested at 63 PSI. I ended up installing a complete factory fuel pump module. I also replaced the fuel filter. I reviewed the owner's maintenance records and determined the fuel ... |
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| 2003 Chevrolet Trailblazer North Face 4.2L Starting (Ignition) VIN: 1GNDT13S03 the fix to this one was the pedal position sensor (on the gas pedal) we replaced it and all is well . now the no start at times was being caused by the ignition switch not seating right in the housing due to a broken tab. thanks to all who responded. |
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| 2003 Chevrolet Impala 3.4L Poor Idle Quality, Surge VIN: 2G1WF52E33 Thanks for all the replies. After looking at the scan data for a while i decided that the best way to narrow this problem down was to cut the tps signal wire near the ecm connector & measure the voltage. When the problem was occuring i had around 2 volts or m... Trouble codes: P0101, P0121. |
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| 2004 Chevrolet Silverado 2500 6.0L low power VIN: 1GCHK29U74 Thanks to all we replace the throttle and all works great. one would think that they would have a better system on that throttle. Again thanks to everyone Trouble codes: P1516 (eletric throttle). |
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