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Professional Automotive Repair Technical Discussions for July 24, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Chevrolet Express 3500 6.5L Excessive Emissions, Hesitation VIN: 1GBJG31F32 Vehicle came in for a lack of power CEL on. On initial road test it ran OK for a few miles until the CEL illuminated. The engine "changed pitch" and it had a lack of power. A scan revealed the codes listed in history. At that time I cleared the codes, code P0... Trouble codes: P0183 (Fuel temp sensor A high), P0216 (Injection timing control circuit), P0266 (Cyl 2 balance fault), P0278 (Cyl 6 balance fault), P0236 (Boost sensor 1) |
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| 2002 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13S32 GM Boys, This one is got us a bit out of sorts, customer just purchased (from a relative, with the mil on!!) P0014 which re occurs very quickly after clearing, and a p1345 which has not re-occured since clearing code. we first flushed the engine with the SNA... Trouble codes: P0014 (Cam phase angle variation out of range), P1345 (the deviation between the crankshaft and camshaft position exceeds a calibrated amount DTC P1345 will set.) |
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| 2010 Chevrolet Traverse LT 3.6L MIL Lamp on VIN: 1GNLVFED0A 3 months and 14,000 miles later vehicle is back with CEL on, no running issues and P0154, P0155, P0300, P0301 codes stored. Looking at PIDS with Tech 11 scan tool I see that B2 S1 and B1 S1 heater resistance readings are close to the same at 40,000 plus ohms. ... Trouble codes: P0050 (B2 S1 heater control circut), P0154 (HO2S B2S1 Insufficient activity), P0300 (Random misfire), P0301 (Cyl 1 misfire) |
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| 2006 GMC Yukon Denali 6.0L passenger side window VIN: 1GKEK63U76 Hi everybody, this truck came to the shop with the passenger front window not working, it won't go up or down from any switch passenger or driver also the power lock don't move is like the switch is disconnected from the network, no communication with the scan... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1990 Buick LeSabre Custom 3.8L blower motor VIN: 1G4HP54CXL Buick is fixed! Thanks to all for the great help. control head was faulty. Got a used one from salvage yard and all is fine. You could see slight burned or "hot" area at head connector. After I removed the black tape from harness I could see how the blower... |
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| 1995 Chevrolet P30 6.5L Excessive Emissions, No Start, Hard Start VIN: 1GBKP37F5S Well this one is not 100% fixed but the issues have been diagnosed. After leaving in out side over night the cold start this mornings much better. Still an extended crank and smoke but started on the first attempt. The glow plugs were a major playing in thi... |
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| 1998 Chevrolet C3500 Silverado 5.7L Hesitation, Surge, MIL Lamp on This truck has continued to pass all test, customer has decided not to replace the injectors to the updated ones since i can not guarantee it will fix it. He is unwilling to go any further with repairs or diagnosis and wants to wait until smog time. Trouble codes: P0171, P0174. |
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| 2004 Chevrolet Silverado 1500 5.3L No Start VIN: 2GCEC19T24 Well the fix was a broken ground wire caused by a pack rat. There is two ground wires to the back of each one of the cylinder heads, the passenger side was the chewed one by the rat. Some of you guys mentioned grounds are problem so I just looked over the eng... |
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| 2004 Saturn L300 3 3.0L ignition VIN: 1G8JL54R54 thanks for the help, i replaced front and rear coil packs with borg warner, cleaned plugs, used worm style hose clamps runs good, i think this motor is a saab engine,thanks again. |
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