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Professional Automotive Repair Technical Discussions for March 1, 2023 International Automotive Technicians' Network (iATN) - Members Only |
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| (Also Available: All, Asian, Chrysler, European, Ford, GM.) | ||
| Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. | ||
Open Help Requests for GM
| Help Request | Answers | |
| 2001 Pontiac Bonneville SSEi 3.8L Poor Idle Quality, Misfire VIN: 1G2HZ54151 Came in with ruff idle. Replace spark plugs. Checked wires. Came back a month later with lack of power, with missing. Had a miss fire on Cylinder 4. Checked wire and coil. Checked spark plug, it was cracked. Installed new one. Gave back to customer. Two da... Trouble codes: P0300 (Missfire) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2009 Cadillac STS 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G6DA67V69 I misspoke in my original post. Fuel rail pressures are in Mpa, not Kpa. After much debate with coworkers, I decided to tear everything back down to check the timing. I got lucky and after spinning the engine by hand about a dozen times the marks on the timing... Trouble codes: P0087 (Low fuel pressure), P0089 (P0302- Misfire cyl 2), P0302 (Misfire cyl 2), P0304 (Misfire cyl 4), P0306 (Misfire cyl 6), P0016 (Crank cam correlation bank 1). |
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| 2014 GMC Sierra 3500 HD Denali 6.6L Surge VIN: 1GT426C88E after speaking to customer found that this vehicle had been in four feet of salt water they put in an insurance claim and vehicle was totalled thanks again Trouble codes: P0088. |
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