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Professional Automotive Repair Technical Discussions for December 28, 2011 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1991 Cadillac DeVille 4.9L will foul plugs VIN: 1G6CD53B0M This car came in no start replaced ignition modual and ran good for two weeks. Then was towed in not starting. Cleaned plug and ran very poor.in the prosses of testing pull comp. Down from dash and started running good. Car left and ran good for about 3 weeks.... |
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| 2006 Chevrolet C4500 Kodiak C4C042 6.6L drivetrain VIN: 1GBE4C3286 Stumped on this one, any help would be appreciated. Truck came in with vibration complaint. Road test and has vibration on hard accel from stand still, after first shift noise goes away. Than above 42 mph it returns, and will not go away until you fall below 4... |
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| 2006 Chevrolet Impala LT 3.5L theft system VIN: 2G1WT58K56 i replaced the theft deterent module for intermittent (unable to duplicate) starting problems (theft codes were stored in pcm). after replacing tdm and programming with the tech 2 it would not learn the keys. i tried programming several times (and have been s... |
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| 2007 Chevrolet Impala LS 3.9L Horn VIN: 2G1WS55R97 Workin clock spring good horn not cannot find relay please help. |
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| 2001 GMC Savana 2500 5.7L Starting VIN: 1GTGG25R51 This van was towed in for a no start . Found ECM-1 fuse blown replaced fuse ran great for about 20 min fuse blew again . I have checked wiring at PCM and at fuse box and found nothing . Have also checked grounds for this circuit all grounds are good . I have h... |
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| 2002 GMC Sierra 2500 HD SL 8.1L Poor Fuel Economy VIN: 1GTHK23G22 how does a 1/2 of a quart of fuel get into the oil over just 50 miles and not set a code or run any differant. Found the fuel trims to be normal. o2s are switching from lean to rich with out a problem. Coolant sensor is right. air temp is right. the egr is not... |
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| 2006 Pontiac Montana SV6 3.5L Starter VIN: 1GMDV33L66 Well a fine mess i have here. This montana came in with a lifter ticking, we pulled the intake and installed a new set of lifters, very clean engine and well maintained. Go to crank it over and nothing, no crank, no starter, no click at all. Hook up our snap o... |
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| 2006 Pontiac G6 2.4L MIL Lamp on VIN: 1G2ZF55B76 Road test, runs fine. Code p0420-CAT inefficient. Watch data stream and find that cat monitor lazily hangs out around 0.8v regardless of engine speed, load, added fuel. Occasionaly the V will drop to low around 0.2. I know what a cat mon should look like after... Trouble codes: P0420 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2000 Chevrolet Malibu 3.1L Stall VIN: 1G1ND52J6Y Hi and thanks for all the replies. It turned out that the fuel pump was fine so i did NOT charge the customer for that. I was loosing spark when it stalled. Replaced the ignition control module and that cured the problem. Thanks again for the help. |
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| 2000 Chevrolet S10 2.2L clutch pedal Thanks to thosed that replied. Have not made the repair yet. Looks like I need to drop the column and remove the cluster to get access to the pin release. |
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| 2002 Chevrolet Silverado 1500 5.3L abs VIN: 2GCEK19T82 when i scanned the abs light for codes it gave me a code for left front speed sensor. i went and replaced left front wheel speed sensor and the truck is now braking normal |
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| 1996 Oldsmobile Achieva SC 3.1L No Start Thanks to all who took time to reply. I'm closing this because I'm running out of time on this post. The security on this vehicle does not take programmable keys and does not have a body computer. The ignition cylinder sends a voltage signal to the ipc which ... Trouble codes: P1629 (theft deterrent signal not received). |
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