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Professional Automotive Repair Technical Discussions for September 9, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Buick Rainier CXL Plus 5.3L MIL Lamp on VIN: 5GAET13M45 This Buick will very intermittently set these codes, puzzling that it sets rich & lean faults, customer reports no symptoms at all. Last time it was in for oil change it also had a P0101 mass airflow code, cleaned mass airflow sensor during service, had been f... Trouble codes: P0121 (Tps), P0171 (lean), P0172 (lean), P0174 (rich), P0175 (rich) |
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| 2004 Chevrolet Silverado 3500 6.0L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GBJK34U44 Vehicle starts, idles rough then smoothes out. As soon as you start the vehicle it sets both codes. if you put it in gear it runs rough. all O2 sensors are fixed max rich. Short term long term are fixed max lean -30. power and ground at maf and map sensors are... Trouble codes: P0101, P0106 |
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| 2008 Chevrolet Silverado 1500 WT 4.3L vehicle speed sensor Gonna cut to the chase on this one for you GoodWrench guys. Got this Chevy Silverado 4.3 that the ecm is putting out an erratic speed sensor signal when the vehicle is not moving and the speed sensor in the trans is not putting out a signal. Checked vss signal... |
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| 2001 Pontiac Grand Am SE 2.4L OIl Pressure VIN: 1G2NE52T31 Vehicle towed in for oil leak. Added 2 quarts oil, started vehicle and oil was FLOWING like I have never seen from an oil pressure switch. Replaced switch with a ac-delco switch and now the oil light is on. Removed switch and tested oil pressure. At idle the p... |
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| 2008 Pontiac G6 GT 3.9L temp actuator VIN: 1G2ZH36158 Just did $1500+ worth of A/C work on this car a month ago. Now customer complained of no heat. I scanned it and found code B0408 left temp actuator circuit. There is only 1 temp actuator, but it is on right side accessable through the glove box. I removed the ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Cadillac DeVille 4.6L Brake Pedal VIN: 1G6KD57Y72 Again thank you to all you have been a great help I found this repair completely by accident I was yet again bleeding the brakes because I thought another master cylinder was bad while I was bleeding the brakes I was looking at each piston and found that the r... |
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| 2000 Chevrolet Silverado 2500 6.0L MIL Lamp on VIN: 1GCFC29UXY Mission Accomplished!!! The truck is FIXED!!! Thanks for all the insightful replies... I couldn't have done it without your help!!! This certainly qualified as "On The Job Training"!!! We had found an intermittent short in the downstream sensor wiring, an... Trouble codes: P0157 (Bank 2 Sensor 2 low voltage). |
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| 2001 Chevrolet Corvette 5.7L MIL Lamp on VIN: 1G1YY22G31 Thanks to those that responded. The vehicle has not been back yet, but when it does I'll recheck all plumbing both check valves and air pump. Trouble codes: P1416. |
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| 2002 Chevrolet Corvette Z06 5.7L valve springs VIN: 1G1YY12S42 Thanks for the quick responses. Matthew [...] got back to me in just a few minutes and confirmed that they were indeed Z06 springs. I went ahead and replaced the springs. I got several confirmations also that they do indeed break prematurely. I feel safer a... |
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| 2003 Saturn LW300 3.0L Power brakes VIN: 1G8JW84R53 Sorry for the delay guys, it was a 2 defective power boosters Stay away from A1 Cardone |
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