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Professional Automotive Repair Technical Discussions for December 18, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Buick Park Avenue 3.8L Misfire VIN: 1G4CW54K92 Vehicle came in for check engine light flashing. Scan and found (p0300) set for random misfired. I pull the spark plugs off, gap is out off spec, and corroded really bad. I replace with new oem iridium plugs and premium ignition wire set. Check engine comes ba... Trouble codes: P0300 |
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| 1998 Chevrolet K1500 Cheyenne 5.7L transfer case VIN: 1GCEK14R1W This vehicle came to me with complaint of no 4X4. When customer dropped off they stated they had tried to fix themselves. Sure enough it was in pieces. After I reassemble various parts I diagnosed a bad encoder motor. Installed new motor and when I plugged it ... |
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| 2002 Chevrolet Silverado 3500 6.0L Fuel guage VIN: 1GBJK34U82 This truck has a dual fuel tank system. It has an aluminum box on the truck instead of a bed. The truck is used for tree trimming services. The owner says that when the truck is out in the field on uneven surfaces the fuel gauge will go to empty and code p1172... |
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| 2005 Chevrolet Silverado 1500 4.3L starting VIN: 1GCEC19XX5 Hi and thanks in advance. So this truck ends up in our shop. It has a starter that stayed engaged when it would start. We replaced the starter and it fixed the engage problem. But now see that when you turn the key the starter turns the engine over for like 2 ... |
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| 2006 Chevrolet Impala LTZ 3.9L distance VIN: 2G1WU58136 Customer complaint, only short range remote start working. works no longer than 75 feet. i have done the above service bulletin for the poor range. and i actually installed the updated RCDLR module with part # [...]. the vehicle still has the poor range. pa... |
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| 2009 Chevrolet Silverado 1500 LT 4.8L MIL Lamp on VIN: 1GCEK29C59 Hello All! MIL sets P2534 in Fuel Pressure Control Module (FPCM) and trailer brake control module (which it doesn't have) immediately on start up. have good battery voltage at Fuel Pressure Control Module with key in Ignition positions 2 and crank. Interesting... Trouble codes: P2534 (Ign circuit low), P069E |
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| 2010 Chevrolet Silverado 1500 Hybrid 6.0L MIL Lamp on VIN: 3GCXCUEJ3A Hi friends, im already confused with this car, check engine light is on show me code P0011 im already replaced camshaft position sensor and camshaft actuator, replaced oil, filter, oil pressure ok. Trouble codes: P0011 (Camshaft Actuator perfomance) |
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| 2004 GMC Envoy SLT 4.2L Engine VIN: 1GKES16S54 I'm at my wits end with this Envoy. After reinstalling cylinder head I have developed a misfire on cylinder #5. Upon startup, no misfire is evident. As it warms, I can observe the misfires start to rack up on scan tool. The warmer the engine becomes, the faste... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1999 Chevrolet Silverado 1500 5.3L Misfire WELL I CHECKED VALVE SPRINGS AND I DID A CRANK RELEARN. NO CHANGE THIS ENGINE DOES NOT HAVE DISTRIBUTER. THEN I CHECKED BACK PRESSURE, 5 LBS. JUST REVING IT UP NOT EVEN UNDER LOAD AND WHEN IT WAS COLD.FOUND THE PROBLEM BAD CATS.THANKS FOR THE HELP. |
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| 2003 Chevrolet Tracker 2.0L engine VIN: 2CNBE13C93 thanks for all the help, Charles from Pennsylvania you were right the new mounts i used were were anchor brand, i put new GM mounts on and all vibration is gone, thanks to all for your help |
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| 2008 Chevrolet Aveo LS 1.6L no communication with tcm VIN: KL1TD56628 thank you both for the responses it turns out i must have blown the fuse when testing the vss before replacement. when i followed the advise of Michael i found the blown fuse. it's not often i ask for help on this forum but it.s nice to get the help when you n... |
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| 2008 Chevrolet Tahoe LTZ 5.3L engine noise VIN: 1GNFK13008 After looking at the numerous possibilities we have contacted the customer and recommended a complete engine replacement due to the high expense of exploratory required to find the actual problem with such high miles. If we get the job, I will break down the e... |
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| 2001 Pontiac Grand Am SE 3.4L MIL Lamp on VIN: 1G2NF12E81 A used PCM fixed this one. Load tested o2 heater power circuit with headlamp bulb (checked okay), grounded o2 heater control at PCM connector with headlamp bulb installed (checked okay), bulb was very dim with PCM hooked up and bulb in place of o2 heater. In... Trouble codes: P0030 (Oxygen sensor heater circuit fault). |
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