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Professional Automotive Repair Technical Discussions for March 11, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1991 Buick Park Avenue 3.8L Stall VIN: 1G4CW53L6M Thanks in advance for your time. this ol 3.8 runs well but has a intermittent stall. about twice a week. low speeds 20 to 30 mph. no warning at all. I installed a fuel gauge and taped it to the windshield. it will restart after the stall on the first crank. no... |
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| 1990 Cadillac DeVille 4.5L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1G6CD1332L good day this car has no communication with scan tool and when I use the ac panel to get into data all I get are three dashes on the screen. this all started right after the speedo quit whyel driving.the car runs like a defective map sensor it is running rich ... |
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| 2012 Chevrolet Express 3500 6.6L Excessive Emissions VIN: 1GBZGUCL9C This unit has come in with exhaust fluid quality message. While performing fluid quality test I noted that there is little to no command for reductant injector (using a Tech2). Does anyone know what the duty cycle should be? Google and alldata have not been he... Trouble codes: 2BAD |
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| 2003 GMC Sierra 2500 SLE 6.0L Cuts out VIN: 1GTHK29U73 when we accelerate slowly the truck runs fine but when we accelerate at fast rate the truck back fires... we checked map sensor, o2 sensors, mass flow sensor, checked coils, check spark all is good. Took cats of exhaust and problem still occurred. what could b... |
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| 1999 Pontiac Montana 3.4L camshaft VIN: 1GMDX03E6X replaced camshaft & bearings crankshaft oil pump timing chain head gaskets 12,000 miles ago because cam broke now has broke again aftermarket parts what do i look for on why |
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| 2002 Saturn SL1 1.9L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G8ZH52862 car came in with a dead miss, and showing a code of p0341 and p1599 figured it to be a faulty module. customer asked for a major tune up as all parts were original. completed tune up and cleared codes and vehicle still has very rough idle but sounds decent abo... Trouble codes: P0341, P1599 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2008 Buick Enclave CXL 3.6L Engine VIN: 5GAEV23798 The jury is in and the verdict is to replace the motor. Talked to the owner and convinced him to go with a GM rebuilt which should be here yet this afternoon. I did learn a lot about the weak spots in this motor, mainly timing chain wear and the absolute need... |
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| 2004 Chevrolet Trailblazer LS 4.2L Fuel Pressure Thanks to all that replied. Can't get this customer to bring the car back in yet. The replies I received included replacing the thermostat for the coolant code and 2 things for the fuel pressure problem. 1: Recheck the readings to make sure my guage was acc... |
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