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Professional Automotive Repair Technical Discussions for July 11, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2004 Chevrolet Tahoe LS 5.3L MIL Lamp on VIN: 1GNEK13Z94 I have long term fuel trims that climb to 23-25 rapidly even right after a reset. These fuel trims stay there at all rpm's and load ranges. I'm thinking I have a logic problem in the PCM Fuel tests 10% alcohol and gravity test is normal. PCM data pid reads 10%... Trouble codes: P0171 (lean b1), P0174 (lean b2), P0300 (random misfire) |
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| 2009 Chevrolet Tahoe LT 5.3L oil presher gage & remot start VIN: 1GNEC233X9 this 2009 tahoe came in oil pressure gage peged at 80 psi & remote starter does not work. Are they related. ck engine light was on on codes i cleared the codes & went on a test drive the light did not come back on the oil pressure gage went to 0 & back to 80 1... |
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| 2008 Pontiac Grand Prix 3.8L no 1st or 4th Car came in could not drive convertor came apart, reuilt unit no hard parts bad actually everything in fairly good shape replaced shift solenoids', epc, pistons' seals'' clutches reinstalled road tested starting out in 2nd gear shifts to third and does not att... |
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| 1999 Saturn SW2 1.9L MIL Lamp on VIN: 1G8ZJ8275X Hi this Saturn came in with a EGR code for insufficient flow. We check all the ports and all was clean, so we replaced the EGR valve. A month later the code came back, it take no less the 2 weeks at the least to come on. We check the monitors and all is good a... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2013 Cadillac ATS 2.0L Misfire VIN: 1G6AC5SX8D I removed the engine mount and could move the engine up and down. When down, I could access firewall side. And could remove the cam cover, exhaust manifold, intake manifold, and front cover. Then lift up the engine and let the cross-member down a little bit an... Trouble codes: P0300 (p0304-), P0304. |
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| 1995 Chevrolet Tahoe LS 5.7L courtesy and dome lamps VIN: 1GNEK13K4S Never did find the RKE module... Short of pulling the headliner down I've had most of the wiring exposed and saw nothing. as of the day he picked the truck up the problem had not returned. he had me install a cut switch between the fuse for the courtesy lamps... |
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| 1997 Chevrolet Express 1500 5.7L door locks, engine data VIN: 1GBFG15R1V Thanks for the replies guys. (even the one maligning my scan tool) New fuel pump cured running issue. (had 54 psi needed 60) Customer decided to live with the electrical issues. |
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| 2000 Chevrolet Prizm 1.8L pcm VIN: 1Y1SK5280Y thank you for the good replies unfortunaly none of them nailed it all the suggestions were to check grounds and voltage which I did a few times and nothing worked but the problem was not me or you guys out there you guys knew what needed to be done and I also ... |
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| 1999 Saturn SC1 1.9L park lamps VIN: 1G8ZN1283X Thanks for the replies. The customer declined to spend more money at this time. I will most likely isolate the park lamp circuit & run a new wire to correct this concern. If they bring it back I will up date at that time. |
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