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Professional Automotive Repair Technical Discussions for April 24, 2013 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1998 Chevrolet Tahoe LS 5.7L lifters VIN: 1GNEK13RXW This engine had a PO308 with a lifter rattle. Checking the rattle was gone and no misfire. Day later engine has a persistent lifter rattle from number 8. Pulled vc and valves have same travel as the rest. Oil had 21k and 15 months. Changed oil and filter using... |
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| 2004 Chevrolet Tahoe LS 5.3L Surge, Cuts out VIN: 1GNEK13Z74 Hello to all. I have a Tahoe 5.3 with a problem that happens between between 5 and 30 miles of driving. Only at light throttle. Most test drives. A drop of power from the engine for one or two seconds. Then again after a about 10 seconds. Then it usually doesn... |
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| 2001 GMC Jimmy SLE 4.3L Misfire, MIL Lamp on VIN: 1GKDT13W61 Truck runs fine you feel no misfire. It doesn't miss at idle at all on the counters. It misses on cylinders 1-5 above [...] in park(Cylinder # 4 misses almost every count & # 1 is about half as many. The other cylinders only have a few), but only after warm... Trouble codes: P0300 (p0304-), P0304 (p0301-), P0301 (testing and results) |
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| 2000 Oldsmobile Intrigue GLS 3.5L cooling system VIN: 1G3WX52HSY This Intrigue came in with the vehicle needing a check out for a local used car lot. Everything was fine except when we drove it for about half an hour the temp gauge went up to just shy of the red zone. This happened at a stop light. Then would drop right bac... |
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| 2004 Oldsmobile Alero GL 2.2L Engine VIN: 1G3NL52F54 Hello all, I need some help here I have this car that sometimes will not start , then if you hold the pedal to the floor it will start but very sluggish , fuel pressure is good , the problem I think is that it is getting too much fuel and not enough air, whe... |
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| 2004 Pontiac Grand Prix GT2 3.8L Cooling Systems VIN: 2G2WS52284 Car is overheating after driven at highway speed for half an hour and coming to a stop. Temp gauge slowly rises to just under red mark. Scan tool reads 245 degrees. Both cooling fans are on high but air from fans is cool. If you put in park and hold RPMs to 20... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2010 Buick LaCrosse CXL 3.0L MIL Lamp on VIN: 1G4GL5EG8A Thanks to everyone for your replies. The customer is kind of hard to get a hold of so it was difficult to get the car back in. The problem started a couple of months back with the p0420 ONLY. As time went on the other two codes occured and would reset shortly ... Trouble codes: P0300, P0420, P0430. |
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| 1990 Chevrolet C1500 Cheyenne 4.3L No Start VIN: 1GCDC14Z8L With the info that I got in all the responses I was able to determine that there is nothing else in this system that controls the ignition circuits. The system will work as a stand-alone with no PCM/ESC intrusion as long as the 4 pin connector is disconnected... |
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| 1992 Chevrolet Corvette 5.7L Misfire VIN: 1G1YY23P1N There was no problem at this time with the optical sensor signals, only the secondary ignition problems. However, most recommendations were to replace the whole thing, although nobody really said what fails in them. So I can't say if they are prone to bearing... |
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| 2005 Chevrolet Colorado Z85 3.5L Engine VIN: 1GCDT19675 First off, I would like to thank everyone for your replies. The new superceded pump, pick up tube and oil pan fixed the low oil pressure problem. Not having low oil pressure prior may have been due to high resistance of VVT or exhaust cam actuator and theref... |
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| 2007 Chevrolet Impala LT 3.5L Misfire SMOKED INTAKE NO LEAK REPLACE # 4 INJECTOR WORKS FINE THANKS FOR THE HELP Trouble codes: P0300. |
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| 2008 Chevrolet Cobalt LT 2.2L No Start I had several help replys, most good but none that hit the problem whice was very complex. we started with an ignition switch which did nothing, this after finding no power on part of the fuses in the underhood fuse block and the BCM, next we replaced the BCM... Trouble codes: U2106 (loss of communication), B3031 (Security system), B3935 (undocumented Theft). |
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| 2007 Saturn Vue 3.5L No Start VIN: 5GZCZ53487 Thanks to all who replied, we changed the starter because of a help suggestion and when checking it found that it was drawing a very high load, this got it starting but not perfect then we changed spark plug boots and now much better. |
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