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Professional Automotive Repair Technical Discussions for February 19, 2021 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2013 Cadillac ATS 2.0L MIL Lamp on VIN: 1G6AG5RX4D Vehicle was running bad, hesitated, put out black smoke. Checked out and had high fuel trims (40 LT and 18-20 for ST) Smoke tested with no signs of a leak, unhooked MAF sensor and readings zeroed out. Per tests we replaced the MAF sensor with an AC Delco a... Trouble codes: P0171 (Lean bank 1) |
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| 1992 GMC C1500 Sierra SLE 4.3L misfire VIN: 1GTEC14Z7N it came in with running excessively rich with misfire. checked for fuel pooling under throttle valve. rebuilt the throttle body with injectors. checked egr valve and replaced due to partially open replace spark plugs due to black with raw fuel. also custom... |
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| 2015 GMC Sierra 1500 SLE 5.3L headlights VIN: 3GTU2UECXF Good evening everyone i just bought this truck about a month ago [this is my personal truck] I noticed at night the headlights arent very bright so i replaced the bulbs with phillips crystal vision headlight bulbs and they are still not real great.I forgot... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2013 Buick Enclave 3.6L Rear cv axle seal VIN: 5GAKVCKD2D Thanks for all the help, The GM seal is #[...]. I could only find it from GM. (The post from John has a national seal #711064 which looks just like the GM seal). My conclusion after looking at how it "works" was to put it back the same way it came out. Blue... |
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| 2005 Chevrolet Suburban 1500 Z71 5.3L Misfire, MIL Lamp on VIN: 3GNFK16Z35 Well, after sitting down with the customer this morning and going over options to finish the diag he has decided to park the rig till he's ready to do the LS swap. We pretty much figured it is probably a valving issue with this motor considering the mileage an... Trouble codes: P0300 (Random Miss Fire). |
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| 2009 Chevrolet Impala LT 3.9L Hesitation, Surge, MIL Lamp on VIN: 2G1WC57M59 Thanks everyone. Ended up being the computer. With computer above 45 degrees it was good. Below that is when the problems occurred. That is why it would be fine after idling for a while but driving cooled down the computer enough to act up again. Trouble codes: P0101 (p1101-), P1101 (p0121-), P0121 (p0172-), P0172. |
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