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Professional Automotive Repair Technical Discussions for August 3, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1995 Chevrolet C2500 Cheyenne 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out VIN: 1GCGC24K2S This truck came in with a surging, cutting off issue. We found the throttle body leaking, and replace the gasket kit on it. It ran fine for about 100 miles and now its back with the same problem and worst. We have a new AC delco fuel pump, distributor with cap... |
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| 1999 Chevrolet Malibu LS 3.1L Surge, Cuts out, Stall VIN: 1G1NE52J2X I bought this car for my son, not running. We replaced the engine with a low mileage engine from a wrecked vehicle. It occasionally (not something i can make it repeat on demand) fires up and dies or stalls. It sometimes goes several days without acting up. N... |
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| 2004 Chevrolet Tahoe LS 5.3L engine VIN: 1GNEK13Z84 first thanks to all who reply. this vehicle was brought in for overheating. water pump was dumping out of vent hole. now i was not informed till after repairs that this vehicle was sitting over a year. i replace pump, hoses,t/stat, and flushed system. i also r... |
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| 2006 Chevrolet Impala LT 3.5L Misfire VIN: 2G1WT58K96 used car cam in from another shop,they replace plug,s/ po300 found cly 2/4/6 cly start to misfire under load / 60 psi fuel pressure cannot free rev over 3500 rpm, good spark, injector test ok, feels like going in to restricted power mode Trouble codes: P0300 |
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| 2002 GMC Sierra 1500 SL 4.8L Misfire, MIL Lamp on VIN: 2GTEC19V12 Thanks for the help in advance.Truck came in for Flashing SES light. Scanned and found I can watch vehicle misfire on #1 and #8.Swapped plugs,wires,coils & injectors.Didn't change anything.Cleaned injectors and checked for vacuum leaks...none detected.Checked ... Trouble codes: P0301 (Misfire on cylinder 1), P0308 (Misfire on cylinder 8) |
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| 2002 GMC Sierra 3500 6.0L Misfire VIN: 1GDJK34U82 This vehicle came in for no instrument cluster operation. Long story short I found to broken grounds on the back of the engine. Repaired grounds, instrument cluster works and now I can communicate with all the modules. Test drove vehicle, CEL came on and the A... Trouble codes: P0300 (Random Misfire) |
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| 2007 Pontiac Torrent 3.4L brakes VIN: 2CKDL63F87 booster and master cylinder did not fix the problem. brakes still lock up after about 15 minutes of driving, if you pull the vacuum hose off of the booster brakes will release and you can drive another fiteen minutes and then do it again. no codes present when... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Chevrolet Silverado 1500 5.3L Fuel gauge, Security Message, Battery Message VIN: 2GCEC19T92 Well after checking the circuits for the EBCM all were okay, I left the class 2 data wire (Lt. Blue) open/cut and reconnected all connectors for the EBCM. The message center operates normal the only exception is the abs light is on. The EBCM has an internal is... |
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| 2006 Chevrolet Express 3500 LT 6.0L Misfire, MIL Lamp on VIN: 1GCHG35U06 Completed Crank sensor relearn and all is good now.Thanks for the help...always good ideas. Trouble codes: P0300 (Random MissFire). |
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| 2007 Chevrolet Avalanche LTZ 5.3L exhaust smoke VIN: 3GNFK12367 Some replies stated to look for oil in the intake and others said maybe bad valve guides and/ or seals. Winners were the updated valve cover left side with revised PCV baffle. I found the intake plenum full of engine oil. Ordered kit from local dealer containi... |
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| 1997 Saturn SW2 1.9L Power steering pump VIN: 1G8ZK8277V Thank you for the replies, we check everything on this car. Restriction on the rack, return line, alignment of pulley, removed the variable solenoid on the pump, and the fluid would still overheat causing the pump to over heat and destroy the pulley. The only ... |
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