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Professional Automotive Repair Technical Discussions for February 5, 2019 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2013 Cadillac XTS 3.6L Front Suspension VIN: 2G61W5S36D There is a sharp bang on right front suspension over bumps. After inspecting suspension we found the right axle suport bearing falling apart and right engine mount and front transmison mounts torn. We replaced these parts and still have the same noise.the ... |
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| 2000 Chevrolet Corvette 5.7L Code P1638 VIN: 1G1YY32GXY Car came in with multiple issues.Replacing a defective battery and tightening the ground cable on the block solved some of the weirder ones. Was setting a P1637 code. (Gen L term.) Using GM's code chart (I should know better) led me to replace the alt. Now... Trouble codes: P1638 (Gen F terminal) |
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| 2008 Chevrolet Tahoe LTZ 5.3L bcm VIN: 1GNFK13048 I have a famous no crank chevy with multiple communication codes all having some relation to the bcm. i have tested the network and have verified i do have communication with the bcm. no com with ipc, air bag, theft, keyles entry, or radio, no door lock or... |
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| 2010 GMC Sierra 1500 SLE 5.3L oil system VIN: 3GTRKVE33A Loss of oil pressure according to instrument panel gauge. Vehicle only has to sit for about 5 minutes for the pressure to go back to about 40 psi when started. However, pressure will slowly drop to 0 and low oil pressure light comes on after a few minutes.... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2008 Chevrolet Tahoe LTZ 5.3L Poor Idle Quality, Surge, Cuts out, Stall, Misfire, VIN: 1GNFK130X8 Sorry for the late reply but its fixed! The problem as many stated was in the engine build. One side of the engine had the lifters in backward. There are two holes in the lifters one for lubrication the other to activate the valves. The engine builder said thi... |
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| 2008 Chevrolet Uplander LS 3.9L Starting VIN: 1GNDV23W58 ran more tests ,found codes p0689,p1682,p2078..vehicle has fuel and spark...found no power to the imt(intake manifold tuning)valve on the pink and black wire..ruled out a security issue due to fuel present..i will re-open a request with all diag info ..thanks |
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| 2008 Chevrolet Silverado 2500 HD WT 6.6L Oil Cooler VIN: 1GCHK29668 I appreciate the replies I received and as pointed out the labor time guides are meant only to be guides, although it's nice if they are accurate, or close to the actual time needed. In this case 2.4 hours is low as they give 2.0 hours for a two wheel drive ve... |
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| 2011 Chevrolet Malibu LS 2.4L Hesitation, Surge, MIL Lamp on VIN: 1G1ZB5E15B Sadly, customer did not want wait and decided to trade car. I think the problem could have been either in the internals of engine, since the long block for the le9 and the le5 have different gm numbers, or a rogue signal from other module rendering the pcm una... Trouble codes: P0101, P0171, P0068. |
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| 2014 Chevrolet Silverado 3500 HD LT 6.6L MIL Lamp on VIN: 1GC3KZC86E THE CUSTOMER TOOK THE VEHICLE TO THE DEALER,THEY WERE NOT ABLE TO RUN THE TEST EITHER, THEY TOLD US THEY STARTED TO LOOK AT EVERYTHING UNDER THE HOOD AND THEY SAID THE GLOW PLUG MODULE BRACKET WAS MISSING AND WAS NOT GROUNDED PROPERLY, ONCE THEY INSTALLED THE ... Trouble codes: P22A1, P22A0, P16A8, P11DC, P20EE. |
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