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Professional Automotive Repair Technical Discussions for April 26, 2006 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1985 Buick Electra Park Avenue 3.8L door locks VIN: 1G4CW6935F While parked with the doors locked, the power locks started pulsing in rotation, one door at a time. The customer found the problem after coming out from shopping. They wouldn't stop until she locked the doors from the outside. Maybe we are looking at gremlins... |
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| 1996 Buick Regal Custom 3.8L MIL Lamp on VIN: 2G4WB52K2T Car came in with only a P0441 code (no purge flow). Checked all hoses for blockage. Everything looked O.K. Cleared codes. Customer came back 2 days later with P0141 (o2 heater circuit) and a P0441 (no purge flow). When car is cold and idling in my shop, no pur... Trouble codes: P0441 (No purge flow), P0141 (O2 heater B1S2) |
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| 1998 Cadillac Eldorado ETC 4.6L ride control VIN: 1G6ET129XW I am looking for a wiring diagram for this vehicle that shows the 5 wires at the sensor and where they go. I have a feeling that the problem is in the wiring and would like to trace it but Mitchell is useless as it tells you about it but doesnt show it in the ... |
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| 2000 Cadillac DeVille 4.6L magnasteer system VIN: 1G6KD54Y9Y Dear Mr Goodwrench, I have a Cadillac that has a loss of steering assist in parking lots trying to turn left or right into a parking space. We have had little rain so water and/or a slipping belt doesn't apppear to be an issue. There are no codes in ABS,Tracti... |
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| 1992 Chevrolet Astro 4.3L No Start, Stall VIN: 1GBDM19ZXN Hello all, Problem started three weeks ago. It would stall on decel and not restart. Banged on the fuel tank and it started. Replaced fuel pump. That lasted about a week. Banged on the tank again it started. Replaced fuel pump and sending unit. Ran fine. That ... |
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| 1996 Chevrolet Blazer 4.3L Hesitation VIN: 1GNCS13W5T Fellow techs,I recently replaced the two injectors mentioned due to them not dropping fuel,causing misfire and SES light to flash,setting code for those two cylinders.Vehicle now runs smooth at idle and under normal acceleration,but under heavy acceleration sm... |
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| 1996 Chevrolet Monte Carlo Z34 3.4L oil leak VIN: 2G1WX12X7T This car came in for a check engine light on. Fixed that and she was concered about the bad oil leak. I thought it was the dist O-ring but found oil leaking around the oil distribution plate and changed that gasket.Well that wasnt it, still leaking. Do these h... |
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| 2000 Chevrolet Impala LS 3.8L No Start, Cuts out, Stall, security lite on VIN: 2G1WH55K5Y Customer states while driving he noticed security lite on in message center. He "thinks" the engine was still running at the time he noticed the lite on. Shortly there after, he says the car had no power (stalled). Then (not knowing it was still in drive) he t... |
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| 2001 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1ND52J11 Thanks in advance for any help. Customer brought car in for check engine light and a intermittent high idle. Had a dtc p1635, 5 volt ref. circuit and p1189, engine oil pressure switch. Started by checking p1635 first. Checked 5 volt circuit for tps, map, egr p... Trouble codes: P1189 (engine oil pressure switch circuit), P1635 (5 volt reference 1 circuit) |
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| 1994 GMC K2500 Sierra SL 6.5L MIL Lamp on VIN: 2GTFK29S1R Hello, I have this k2500 with a 6.5 turbo in it and it sets code 33 for the egr barometer low voltage. I tried to use my mastertech scan tool to diagnose as per the trouble shooting tree. All i can see is egr duty cycle and it is 66% at idle. The problem im ha... Trouble codes: 33 (Egr barometer low volt) |
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| 2002 GMC C8500 7.2L Excessive Emissions VIN: 1GDP7H1C72 this vehicle has excessive noise and blue smoke upon start up and idle.We have no manuals for this vehicle. I am wondering if there is an adjustment for the injection system?Or if we have a bad injector or two.If anyone could help that would be great. Travis |
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| 2003 GMC Envoy SLT 4.2L Poor Fuel Economy, MIL Lamp on VIN: 1GKDS13S93 Vehicle came in with MIL light on and codes P1523 Throttle Plate Position, and P0172 System runs rich bank 1. Hooked-up fuel pressure gauge found pressure to be 55psi, spec call for 54psi. Fuel pressure regulator has no vacuum to it. Is this normal. I did try ... Trouble codes: P1523 (Throttle Plate Position), P0172 (System Rich Bank 1) |
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| 1994 Pontiac Bonneville SE 3.8L MIL Lamp on VIN: 1G2HX52L5R The car runs great. Has never failed to start has never missed or stumbled. Came in with MIL on was the only complaint. Pulled three codes (341 - 321 - 361) but p0361 I have no information from MOD at all. Have no direction to go at all but would guess it is r... Trouble codes: P0341 (cam/crank error), P0321 (spark reference), P0361 |
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| 1996 Pontiac Grand Am SE 3.1L ign. cylinder VIN: 1G2NE52M3T customer complains of periodic not being able to turn key off all the way & be removed from ign. cylinder. vehicle shuts off "ok" but cannot remove key re: won't go back far enough. dash lights etc. stay on. wiggling steering wheel does not help, shifting in &... |
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| 1997 Pontiac Grand Prix GTP 3.8L No Start VIN: 1G2WP5216V Hi Guys I am really stumped to nightmare came was towed in the driver said the car kept cutting out and n it won't start. I hooked up my mt2500 scanner up and got no comunication. Ran standard elect. test fuses, grounds, shorts,etc and and beleive everything o... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1993 Buick Park Avenue Ultra 3.8L supercharger VIN: 1G4CU5310P Good Morning guys, I believe what I have here is a used supercharger with the same noise as the old one. I disassembled the original SC and it appears that the vanes have been contacting the case towards the rear. There are two roller bearings at the rear, sim... |
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| 1999 Chevrolet Lumina 3.1L Hesitation, Cuts out, Misfire VIN: 2G1WL52M4X thanks to all who answered my help request,the problem was not acting up again til today.i had already checked everything that was written in.the connector going to ignition module was all green ,but the crank sensor side was clean.cleaned an tightened terms.p... |
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| 2004 Chevrolet Impala 3.4L No Start VIN: 2G1WF52E84 The dealer looked at the car and came up with a faulty BCM. They came to this conclusion using their Tech1 scanner. The customer did not want the repair at this time for whatever reasons I don't know. Sorry that I can't be any more helpfull in my repair. Trouble codes: P0443, P0645, B1440, B2587, B2964, B3128. |
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| 1994 GMC K2500 Suburban 5.7L wipers VIN: 1GKGK26K3R I had many replys and there were three main posssible causes. 1. Bad circuit board. 2. Cracked solder connections in the circiut board, which can be resoldered. 3. Bad ground to the wiper assembly. We have installed a new ground to the wiper and put the truck ... |
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| 2003 GMC Envoy XL SLE 4.2L Accessories VIN: 1GKET16SX3 monitored window circuits when the fault would occur and found it to be the ignition switch. replaced the switch and the concern was resolved. ty for all the help. |
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