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Professional Automotive Repair Technical Discussions for October 9, 2008 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1999 Buick Century Custom 3.1L auto climate control VIN: 2G4WS52M7X Thank You in advance to anyone who can help! I have a 99 Century Limited that had no display on the auto-climate control.I checked all voltages and grounds according to Alldata and everything seemed ok.No solder joint cracks could be found, put under a micros... |
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| 2002 Buick Regal LS 3.8L all ip warning lights VIN: 2G4WV55K62 I checked the car as it came in and the ip lights all are blinking when I turn the turn signal on it stops blinking and no crank when I try to crank it with out turn signal it's like the power is in and out as I'm cranking. The rpm shows 39 koeo and no codes I... |
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| 2005 Buick Terraza CXL 3.5L Steering Wheel VIN: SGADX3L15D AWD van came in with Steering Wheel pulsation/chatter when turning corners between 20-45 mph WITHOUT brakes applied. Tire wear is even and at 7/32 tread depth. Differential fluids are very clean with no particles. Power Steering fluid has been flushed with cor... |
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| 1999 Cadillac Eldorado ESC 4.6L parking brake release VIN: 1G6EL12Y8X problem is intermittent ---can not find any information on how this solenoid gets it's signal---mitchell says that a mechanical switch on console shift lever releases the pking brake but I followed the vac hose to the same solenid pack that the HVAC uses for m... |
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| 2000 Cadillac Catera 3.0L Mechanical VIN: 2W06VR54R7 Thanks in advance to all! I have this Caddy in the shop. Just changed the water pump and when it was restarted it sounds like the lifters had pumped down? Let it run to normal temp, still noisy. It was quiet on the way into the shop? It has low mileage and we ... |
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| 2002 Cadillac Escalade 6.0L service stability VIN: 1GYEK63N12 vehicle came to shop for service stability illuminated on drivers info center. no further symptoms or complaints. initially scanned for dtc's. collected the following; c0290 class 2 data link malf., co281 stop lamp switch circuit, co263 master cylinder pressur... |
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| 2005 Cadillac STS 4.6L MIL Lamp on VIN: 1G6DC67A95 Hello again everyone and thanks for taking the time to read this. Once again Mitchell has let me down with a lack of information. I cant wait for my contract to expire so i can get alldata. This car runs fine and has no warning bells. The check engine light is... Trouble codes: P0522 (Oil pressure circuit low voltage), P0521 (Engine oil pressure sensor range/performance) |
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| 1971 Chevrolet Chevelle 502CID Pinging VIN: 1D37H2B587 Try to set Timing at 8 deg btdc and with 30 deg total advance and motor will hardley run and spit through the carb, if I set base timing to 35 to 40 deg btdc with no advance hooked up it runs great has plenty of power but pings under hard accel decrease timing... |
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| 1993 Chevrolet Camaro 3.4L Cuts out, Misfire VIN: 2G1FP22S7P I am listing this for a friend of mine, he has replaced all the above mentioned parts but still this vehicle is loosing injector pulse on 3 cyls at a time, it will not idle. On 1 ign cycle cyls 1,3,5 have injector pulse 2,4,6 do not. On another cycle 2,4,6 hav... |
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| 1995 Chevrolet Corsica 3.1L No Start VIN: 1G1LD55M4S car cranks over ok, has spark, has fuel pressure, but will not start. scan tool shows rpm of 300, iac of 128, temp. is the same as shop temp. iat is same. |
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| 1997 Chevrolet Lumina 3.1L Misfire, MIL Lamp on VIN: 2G1WL52M4V Car came in with ses lamp on. Pulled random multiple misfire code. Hooked up red brick and went into Misfire and cyl #2 was counting off misfires. All other cyls were good. Replaced plug,wire, injector, coil and module. Also changed parts on companion cyl #5. ... |
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| 2003 Chevrolet Trailblazer North Face 4.2L No Start VIN: 1GNET16S83 This vehical was towed in no start and no communication to the scanner,I have checked all fuses,power and grounds,replaced the ignition switch,with NO change. |
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| 2003 Chevrolet Express 2500 5.3L abs VIN: 1GCFH25T73 The vehicle came into the shop w/customer complaining the ABS light was on. We scanned the ABS and came up with a code for the R/F wheel speed sensor. We found excessive play in the hub bearing so it was replaced. When the job was done we cleared the faults bu... |
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| 2006 Chevrolet Colorado LT 3.5L cylinder head VIN: 1GCDT13676 Removing cylinder head for valve seat repair. Need to know if there is a way to remove the head without removing the front timing cover? Any tips or tricks to doing that if it is possible? Also anything we should be cautious of or aware of regarding the variab... |
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| 1997 GMC C1500 Sierra SL 5.0L Headlights VIN: 2GTEC19MXV Customer complaint is every four to five weeks, vehicle headlights will flash on and off while driving at night. Also, says steering feels as if he doesn't have control. This condition last for only a few seconds and then doesn't repeat again for up to four to... |
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| 2004 GMC Envoy SLE 4.2L MIL Lamp on VIN: 1GKDS13S64 I'm beginning to hate CAN failure diagnostics, We got these codes on this Envoy which turns on the ABS, and the Brake warning lights and the A/C stops working. When we checked the BUSS connector to see which module was not communicating all modules were there ... Trouble codes: U1000 (CAN Failure), U1041 (ABS Communication Failure) |
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| 2008 GMC Acadia SLT 3.6L MIL Lamp on VIN: 1GKER23748 KOEO humming / squealing noise (like a hearing aid in need of adjustment) from transaxle elec. connector area occurs(with or without batt 1 fuse installed). Presumably not normal? Customer likely returning to dealer for evap emmissions code under new veh. wa... Trouble codes: P0449 (Evaportive Emmissions Control Circuit Intermittant) |
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| 2004 Other GM 4310 .0L trans VIN: YZNH40P008 Here is a good one!! We have a John Deere 4310 E-Hydro Tractor that will move then stop. Has been told it was in limp mode. Anyone know how to get it out of limp mode. It has a few codes flashing on the dash code 13 and 121. We can not find any info on this. W... |
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| 2000 Pontiac Grand Am GT 3.4L security VIN: 1G2NW12E9Y Key would not turn, replaced ignition lock cylinder. Followed passlock relearn procedure, the security light comes on, but shuts off right away, does not stay on for the 10 minutes. Tried starting over, but always the same. Also, radio does not work, antitheft... |
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| 2003 Pontiac Aztek 3.4L alternator VIN: 3G7DA03E13 repalced bad alternator with reman and battery light stays on. |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2001 Buick Century Custom 3.1L ignition key VIN: 2G4WS52JX1 THANK EVERYONE THAT REPLYED TO THIS ONE, PHIL FROM UTAH WAS RIGHT ON TIME WITH HIS INFO,I WISH HE WAS ON MY TEAM HERE THE INFO HE GAVE IS OF (GREAT) VALUE. THE CUSTOMER HAD A LOCKSMITH KEY THE IGNITION FOR $35.00 WITH PHIL [...] INFO. AND I GAVE THE SHADTREE REPAIR... |
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| 2003 Buick Regal LS 3.8L Steering VIN: 2G4WB52K13 Then after 3 racks, 2 pump (reman), 3 alignment and saw a lot of people on iatn having problems with these cars and trying a lot of things and spending a lot of time for a problem that is a minor problem on other car models I decided to resolve the problem my ... |
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| 1996 Cadillac DeVille 4.6L ride control VIN: 1G6KD52Y9T did not fix but did diagnos. had several replies about the code. It was for right frontsolenoid. Car actually had code for right front bad and the left rear was leaking. Delco showed parts still available. Price staggerd customer ... |
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| 2007 Cadillac CTS 3.6L engine VIN: 1G6DP57727 THANKS FOR ALL THE GOOD ADVISE. CHANGING OIL + FILTER HELPED . CUST WILL DRIVE FOR A WHILE TO SEE HOW IT IS. TSB MIGHT APPLY (SEE REPLIES) BUT STEP ONE IS CORRECT OIL WT + VISCOCITY + GO FROM THERE. JIFFY LUBE STRIKES AGAIN. |
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| 1990 Chevrolet K1500 Cheyenne 5.7L No Start VIN: 1GCDK14K4L I got many good responses to this. Terry, Matt, Scott, & James, all suggested power to the ECM/Fuse. I checked and the fuse was blown. I checked power and no shorts. I had the battery disconnected during the fuel pump replacement. I had also checked the po... |
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| 1996 Chevrolet Lumina 3.1L MIL Lamp on VIN: 2G1WL52MXT I AM GOING TO SAY THIS ONE IS FIXED. TALKED TO CUSTOMER AND HAVE NOT HAD ANY MORE PROBLEMS OR CK ENG LIGHT.CAN NOT EXPLAIN THE LOW VOLTS ON MAP AND BARO. BUT REMAN PCM AND MAP SENSOR CURED HIS RUNNING PROBLEMS THANKS AGAIN FOR EVERYONES HELP. Trouble codes: P1106 (map intermittent high voltage). |
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| 2003 Chevrolet Express 1500 5.3L headlights VIN: 1GCFG15T33 checked all my ground connections, Ok, accessed BCM , checked terminals, ok.inspected fuse/relay box at left fender well, it was floating around in there due to broken plastic clips .. i never got the lights toact up , but while monitoring live data at BCM i... |
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| 1996 Pontiac Grand Am SE 3.1L No Start VIN: 1G2NE52M8T Thanks for all the help,but we were unable to do any more testing after we sent this request for help. The customer did not want to us to do any more work on the car due to the cost of diagnoses. Sorry we could not supply you with any more information. Trouble codes: P1629 (theft fuel enbale-incorrect/no signal). |
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| 2001 Pontiac Aztek 3.4L Hydraulic System VIN: 3G7DA03E41 Hi iATN, sorry for the delay. The problem with this vehicle was the steering lines that run along the subframe were resting against the frame causing the noise. The small rubber mounts for the lines weren't installed. There was absolutely no air in the hydraul... |
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