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Professional Automotive Repair Technical Discussions for August 14, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1993 Chevrolet Caprice Classic LTZ 5.7L Poor Idle Quality, Surge VIN: 1G1BL8372P Need help from the GM TBI Gods! Cust says car runs poorly, has no power and idle surges. Also has long crank time. Confirmed symptoms, it feels just like a plugged cat. He also said he had a performance computer on it and was able to "tune around the problem"... |
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| 2002 Chevrolet Blazer LS 4.3L Extended crank VIN: 1GNDT13W12 Hello we have a blazer here that has me a little stumped. Truck has an extended crank after a brief sitting period or over night. Happens hot or cold, Acts like loss of fuel prime however is pressure is present under both hot and cold start. I have tested all ... |
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| 2003 Chevrolet Trailblazer North Face 4.2L Air Bag Code B0041 VIN: 1GNDT13S93 This code B0041 is for the Drivers Side Deployment Loop Open. I have looked over the harnesses I can see & everything is plugged in & nothing looks corroded or like there is a poor connection. Unfortunately, Air Bag systems are not our specialty but I'd like t... |
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| 2003 Chevrolet Silverado 1500 5.3L service 4x4 light on VIN: 1GCEK19T23 This truck sets a code c0306 - Motor A/B circuit malfunction about 5 seconds after you turn the key on or start it. I have tested the power inputs and have battery voltage. I have .041 voltage drop on the ground circuit. Both the encoder motor and the TCCM hav... |
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| 2004 Chevrolet Impala LS 3.8L Misfire VIN: 2G1WH52K24 vehicle came in with misfire on cylinder 1 and 2. startup vehicle runs ok, as soon as you step on the gas it starts to misfire. the only thing I have not done is pull the valve cover to see if vlave spring is broken. Vehicle will stay running great as long as ... Trouble codes: P0300 |
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| 2007 GMC Envoy Denali 5.3L drivers air bag VIN: 1GKET63M47 Truck came in with air bag code B0026. Found an open in the clock spring. After replacing the clock spring code B0026 passed but now it has a B0042 code. B0026 is an open code and B0042 is for low resistance. Checked the plugs and all are ok. Thanks for any he... |
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| 2008 GMC Envoy SLE 4.2L inop front vents VIN: 1GKDT13S18 Front vents do not work with Air/Heat, neither does defrost or on the floor, even when you try to put the air at lower speeds or higher nothing comes out. The Rear Air/Heat works fine on all levels. Along with the front air not blowing at all, the lights stay... |
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| 1996 Oldsmobile Cutlass Ciera 3.1L No Start Car stalled while driving & would not restart. There is spark but no injector pulse, engine will run with other fuel source. When looking at the scan tool there is crank & cam sensor signals, pulse width is 19.1 ms during cranking. I assume its that high due t... Trouble codes: P1200, P1406 (Egr pintle position circuit problem) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1964 Buick Wildcat 6.6L brakes Thank you everyone for your inputs. We ultimately found worn out upper and lower ball joints on the left side and a collapsed brake hose on the right side. Replaced both and the problem went away. Thank you all again for your inputs. |
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| 2010 Cadillac CTS Luxury 3.0L Cuts out VIN: 1G6DE5EG7A oil level was 2 qts low.changed oil . code went away.thank you for the help Trouble codes: P0011. |
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| 2007 Chevrolet Cobalt LT 2.2L coolant temperature VIN: 1G1AL15F57 Thanks For All The Tips I Thought I had Coolant flow Here Timing chain Jumped of And pump wasn't running |
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| 2008 Chevrolet Malibu Classic LS 2.2L air bag system VIN: 1G1ZS58F28 well thank you for your help,like as you said have to get a new one from Ford because those use that we get don't work. thank you again !!! |
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| 2012 Chevrolet Impala LS 3.6L wont pass emissions VIN: 2G1WA5E38C Gentlemen thanks for the help. we cleared all memory performed idle and crank relearns. Tried to run drive trace 3 times and even on the dyno still no luck. monitored o2s closely, tried bumping eng temp with cardboard in front of the radiator. Still no go. Too... |
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