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Professional Automotive Repair Technical Discussions for January 17, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2003 Chevrolet C5500 Kodiak C5C042 6.6L rmp VIN: 1GBE5E1173 truck sat for a while and I just bought it. truck lost prime and had water in fuel. drained water and put on new fuel filter and pumped primer till I had fuel and truck ran ok. lost prime a few times so I added a frame mount lift pump and found out lines to fi... |
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| 2004 Chevrolet Silverado 1500 LS 5.3L Vibration in steering wheel VIN: 2GCEC13T94 Hey guys, this Chevy truck has a vibration/shimmy in the steering wheel at right around 55 mph and over. It happens when you're backing off the throttle, or when you have the gas pedal ever-so-slightly pushed down. Seems to go away under full acceleration and ... |
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| 2007 Chevrolet HHR LS 2.2L MIL Lamp on VIN: 3GNDA13D67 Sets code immediately or shortly after start up. Chain timing is correct. Sensor patterns on scan tool are good. Unable to perform sync with Verus. Says enable conditions not met. Have resynched many GMs with this tool. Any ideas what I'm missing here? Trouble codes: P0016 (Cam crank correlation problem) |
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| 2004 GMC Envoy XL SLT 4.2L no communication VIN: 1GKET16S34 envoy came in -no crank, no start.no communication to any modules with tech 2.ck'd power at ign crank fuse in underhood panel-ok ck'd power to ign.0 and 1 fuses at rear seat fuse panel -ok. power windows or power door locks no work.but with no communication fr... |
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| 2009 GMC C5500 Topkick C5V042 6.6L Brake Hydrobooster VIN: 1GDE5V1969 I am trying to locate a Hydrobooster rebuild kit, with all the proper seal. I know they are out there, but I can't locate the part numbers for the kits. Has anyone ever came across the numbers or a company that carries the parts? |
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| 2002 Oldsmobile Alero GX 2.2L Spark Plug VIN: 1G3NK52F32 Has any one seen #2 spark plug totally burned off the electrode even starting into the threads. This happenes after drivimg several days. I thought it might have been coil related. Replacing coil still comes back burned up spark plug. Thought maybe lean miss f... |
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| 1989 Pontiac Bonneville LE 3.8L Tail Lamps/bypass headlamp module VIN: 1G2HX54C1K Problem 1 came to me with tail lamps inop all fuses ok opened up headlamp switch and divorced rheostat switch does not feed tail lamps but goes to a headlamp module consisting of headlight on buzzer with twilight sentinel if applicable (not equipped) Mitchel... |
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| 2006 Pontiac G6 2.4L MIL Lamp on VIN: 1G2ZF55B26 Vehicle came in 2 weeks ago with p0420 code. Asked for rear 02 sensor to be changed. Sensor was replaced and after 1 week of driving the light came back on with the same code. Currently in the shop. I have look at both front and rear 02 sensor reading and they... Trouble codes: P0420 |
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| 2008 Saturn Aura XE 3.5L Airbag Light VIN: 1G8ZS57N38 Ok I give up!!! I have one here that I just cant seem to figure out. Customer brought his Saturn in for an airbag light. Pulled codes and found B1000 symptom 00 in history of ECM and SDM. Tried to clear but code remained. Followed procedure and checked powers ... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2007 Chevrolet Express 3500 6.6L Regeneration VIN: 1GBJG316X7 This bus had a aftermarket idle up system from a upfitter. The wiring that was tied into the brake switch was shorted together causing the computer to see a brake switch on all the time. There was no data list in ecm data that showed this. I found it in the ab... Trouble codes: P0504 (Brake switch correlation), P2463 (Particulate filter), P244B. |
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| 2011 Chevrolet Cruze LT 1.4L high fuel trim VIN: 1G1PG5S96B The valve on the valve cover has been redisigned and the problem was fixxed by installing a new vavle cover. Thanks for the assistance. Happy Motoring, Bryan [...] Trouble codes: P0171. |
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| 2001 GMC Safari SL 4.3L Surge, Misfire VIN: 1GTDL19W21 Ok, many said exhaust back pressure. Well originally We did pull the exhaust and slight difference but still had a surge. After a little more checking we found the EGR valve had a worn out return spring and was fluddering under part throttle only, replaced E... |
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| 2006 GMC Sierra 2500 HD SLT 6.0L dash unit VIN: 1GTHK29U36 Thanks to all who responded. We found a broken B11 wire from dash unit about 8 inches from the power distribution box. It was inside the harness covering and corroded apart. All the rest of the wires there were fine. I don't know why that one did that. |
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