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Professional Automotive Repair Technical Discussions for August 19, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1989 Chevrolet K3500 Cheyenne 7.4L Hydraulic system VIN: 2GCGK39N3K Hello and thank you in advance! I did some brake work to this truck, new master, brake hoses (all 3) along with calipers, rotors and pads up front. I have a super soft brake pedal. Driving the truck in the lot here, I have found the brake performance is consi... |
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| 2000 Chevrolet Malibu LS 3.1L Cuts out VIN: 1G1NE52J1Y Car runs great cold, as soon as it starts to warm up it bogs and has very little power, when this occurs the o2s will read 890mv at wot. I do not believe its a fuel problem. MAF was low according to VE test.Installed known good MAF and VE came up but still the... |
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| 2007 Chevrolet Express 3500 6.6L compressor VIN: 1GBHG39637 Pressures seem to be equilized with the unit engaged which would indicate a weak compressor and possible a restricted ccot valve. The CCOT valve was removed to inspect and it's okay. The compressor was replaced a second time but results have not changed. |
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| 2008 Chevrolet Impala LS 3.5L starting VIN: 2G1WB58KX8 Car hard to start, runs rough, throws P0335, sensor scoped, pattern looks good, tech 2 doesn't show engine rpms, instrument cluster rpm needle doesn't move, car runs in limp mode using camshaft position sensor as reference. checked harness to crank sensor, the... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2011 Buick LaCrosse CXL 3.6L Reduced power VIN: 1G4GC5ED0B As always, thanks to everyone for the ideas and input. After going through and applying sealant to every connector that was remotely related to the accelerator pedal assembly (as well as at the PCM, EBCM, BCM, and everything else that was accessible), and c... Trouble codes: P2138 (Accelerator pedal position sensor 1-2 implausible), U1007, U1400, U1407, C2420, U2540. |
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| 2013 Chevrolet Spark LS 1.2L A/c compressor VIN: KL8CA6S96D After adding power to a/c compressor and having no change on the 5v. On evap temp sensor decided to replace it and that was the issue. Thanks everyone for your help. |
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