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Professional Automotive Repair Technical Discussions for April 5, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2003 Chevrolet Silverado 1500 4.3L No Start VIN: 1GCEC14X13 HI, I have a weird one here. This truck came in on the towtruck, customer said once it started raining (we had big rain for two days) his engine wouldn't start, but felt like it was trying to. the thing cranks and feels like its trying to fire. I have spark a... Trouble codes: P1626 |
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| 2004 Chevrolet Suburban 1500 Z71 5.3L Starting VIN: 1GNFK16Z34 Hi I have a 04 suburban cam in for a battery draw problem the truck was driven into the shop. we replaced the d/side door module with a new one from dealer now truck wont start I tried the 30 min key relearn even though the dealer said the switch wasn't progra... |
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| 2004 Pontiac Grand Prix GT2 3.8L Hesitation, Stall VIN: 2G2WS52274 On test drive, after gaskets replaced, I noticed a slight hesitation(flat spot) at 1900 RPM. I grabbed my Solus and drove it again monitoring APP and throttle position, nothing wrong showed up. I've found out you can make it act up in the stall by power brakin... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1993 Buick Century Special 3.3L Poor Idle Quality, Surge VIN: 3G4AG55N0P Much thanks to all that replied, and a special thanks to Patrick, who mentioned O2 sensor. The O2 was reading lean and the action of the booster leaned it enough to begin a surge in the idle. replaced the O2 sensor and this did fix the problem. |
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| 1997 Cadillac DeVille 4.6L Theft System VIN: 1G6KD52Y1V Being a "COMMUNICATION ISSUE" I started by disconnecting all modules one at a time . Which did not return any results . So I must have a shorted bus issue. So I disconnected all modules and starting with the closest module in the loop to the DLC , I started ... |
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| 2001 Cadillac Eldorado ETC 4.6L Battery Drain VIN: 1G6ET12991 Thank you for all who replied - I did replace the BCM with a used one for testing to no avail - We plugged the original BCM back in and continued testing - the drain went away when it was in the shop and we could not get the problem to re occur - it has been w... |
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| 2009 Chevrolet Silverado 1500 LT 5.3L False message on IPC VIN: 3GCEC23J39 Bought additional ECT sensor and T stat even though they was NOT installed. Scan tool temp value was consistently 30 degrees below IPC gauge value. Don't have airlift and couldn't find a recommended method for bleeding air out of the system so I tried the sh... |
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| 2009 GMC Sierra 3500 HD WT 6.6L MIL Lamp on VIN: 1GTHK79659 I could not get the code to reset,removed and inspected the connectors at the heater and glow plug module and no problems found.Tested the pink signal wire and also no faults found.So the customer decided to monitor and we will see what happens.Thing is the he... Trouble codes: P154C. |
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