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Professional Automotive Repair Technical Discussions for February 24, 2009 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Buick Rendezvous CX 3.4L check engine light VIN: 3G5DB03E72 after inspection and minor unrelated repairs vehicle was sold from our dealership and came back next day with check engine light on. code p0744 tcc stuck off or open code in memory. testdrove and vehicle had no shifting issues whatsoever. fluid looked/smelled ... |
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| 2002 Buick Rendezvous CX 3.4L temp gauge, fuel gauge VIN: 3G5DB03EX2 o good customer of mine just bought this car knowing the fuel gauge didnt work wich he was ok with. Now he noticed the temp guage would climb to hot ususally in the morning. we got it in our shop and he wanted a new thrmostat. we noticed afterwards it was stil... |
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| 1997 Cadillac Catera 3.0L Unknown VIN: W06VR52R0V ok we have this wonderful german made cadillac that has a draw on the system, we have narrowed down to fuse v4 80 amp mega fuse for bcm. with fuse installed there is a 500 mili amp draw, unplugging the radio makes my draw go to a 18 mili amp draw, so i figured... |
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| 2002 Cadillac DeVille 4.6L Misfire, MIL Lamp on VIN: 1G6KD57YX2 Hello Everyone... MAJOR headache here... Put new Dealer motor in. (Reason)Coolant leaking into cylinders. Runs Great at idle. Go to take off and have check engine light flashing and see misfires on the scanner on Cyl. #1 and #4 only under load. Feel alittle ... Trouble codes: P0300 (random misfire) |
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| 2003 Cadillac CTS 3.2L Key stuck in igntion-no unlock with trans in Park VIN: 1G6DM57N33 We have this 2003 Cadillac CTS that came in with Ignition key not turning all the way off, and not being able to put shifter into gear-stays locked in park. Also, we found the fuel gage not working, and part of the trip computer working, but anything associate... |
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| 2005 Checker Avalanche 5.3L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3GNEK12ZX5 This vehicle only runs bad after hard acceleration.The map voltage goes drops to -0.60 volts.I removed the map to inspect and it was soaked with oil.i cleaned the oil off and voltage is normal around 1 volt at idle. redrove vehicle runs fine until you accelera... Trouble codes: P0151, P0174, P0300 |
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| 1994 Chevrolet Camaro 3.4L Cooling Systems VIN: 2G1FP22S4R Hello I was just throwing this out there if any one has ran into a similar problem. I replaced the motor in this car about two weeks ago customer came back said the car got hot and she had to add coolant. Checked over it didn,t see any thing leaking pressure t... |
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| 1996 Chevrolet Tahoe LS 5.7L Hesitation, lack of power VIN: 1GNEK13RXT vehicle came in with low voltage codes for both front o2's as well as a p0134 - no activity B1S1. Both sensors flatline intermittantly - checked heater ckt - fuse OK - checked fuel pressure - 56-62psi is spec - measured 54 - replaced fuel filter - no change. C... Trouble codes: P0131, P0151, P0134 |
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| 1997 Chevrolet K1500 Cheyenne 5.7L Cuts out, Stall, MIL Lamp on VIN: 1GCEK19R6V i have replaced the coil,ingnition module,crank senser now i going to look at the computer on this truck. what the problem is when it is hot the truck cut out when i put a load on it. the codes then set.when it is cold it runs great. any help would be great. Trouble codes: 339 (crank senser intermittently), 341 (cam senser out of range) |
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| 1998 Chevrolet P30 STEP VAN 350CID No Start, Cuts out VIN: 1GDKP32RW3 This will be the 3 time around for this truck . Truck came in for no power , hard start so we check fuel pressure and it was low so we put a fuel pump in and wired in new plug for pump. 5 days later came back for same problem. Check pressure it was low again s... |
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| 2001 Chevrolet Tahoe 5.3L Mirrors VIN: 1GNEC13T11 2001 Tahoe came in for power mirrors not working. Checked switch for current. Orange wire has 12v and Black is ground. Neither mirror will operate. They will not fold either. Wiring system is in great shape. Alldata doesnt cover diagnostics too well for this p... |
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| 2001 Chevrolet Silverado 1500 5.3L headlights & multifunction VIN: 2GCEK19T11 Vehicle came in with NO headlights, had power on all four orange power wires and could make lights come on by grounding yellow low beam or purple high beam wires. After looking at wiring diagram we determined that the ground ran through the dimmer/multifunctio... |
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| 2001 Chevrolet Malibu 3.1L No Start VIN: 1G1ND52J31 vehicle was towed in as a no start, with prior diagnosis of defective 7x crankshaft sensor in block. customer had attempted to change crank sensor and broke sensor off in block. we removed oil pan to remove broken sensor and replaced sensor. this did not corre... Trouble codes: P0107, P0230 |
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| 2004 Chevrolet Epica LS 2.5L Hight beam VIN: KL1VM52L34 Hight beam indicator does not work and hight beams are on very low. The fuse in the under hood panel shows very low voltage when high beams are on. Feeding 12v to the fuse the lights come on full intensity. What ever feeds the fuse is only suppling partial vol... |
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| 2005 Chevrolet Equinox LT 3.4L Extended Crank VIN: 2CNDL73F25 The Truck has an extended crank after the owner stops it and lets it sit for more than five minutes. the fuel pressure only drops to 54 psi but holds there. When running the pressure is at 60 psi. Trouble codes: P1626 (Anti-Theft Enabled), B1327 (Power ne Circuit Low) |
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| 1995 GMC C1500 Suburban 5.7L Radio VIN: 3GKEC16K6S Hi and thanks for any help . suburbans radio won't let me enter the security code if you try to enter the code the display reads INOP . The wrong code was entered three times and then it started to display Inop is there any way to unlock this radio ? any help ... |
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| 1996 GMC C1500 Sierra SL 4.3L covertor 1 and 2 shift selenoid shift timming sele truck came in shop customer stating that truck engine light went on truck was sluggish seem like truck was trying to start in 3rd gear also when shifted in gear it went in gear hard after a few key cycle it was ok then did it to him agian a few day later he al... |
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| 2004 GMC Sierra 2500 6.0L Differential VIN: U041218916 Hey guys, I have this 4 wheel steer,4x4 Dinelli Pick up truck in my shop. Customer complaint of a moan noise from the rear when turning corners or circling in a parking lot mostly hot. It is in 2wd and 2w steer at the time. He brought it here cold and I could ... |
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| 2003 Hummer H2 6.0L rear washer VIN: 5GRGN23U03 kind of wierd the truck came in and the owner was complaining about a noise when he was cranking the truck up. it is the rear wiper coming on when you crank the car up and it will stay on until you press the button for the rear wipers. i unplugged the switch a... |
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| 1998 Oldsmobile Intrigue 3.8L Hesitation, limp mode VIN: 1G35W52K0W I've got this 3.8 with a charging system that seems only to overcharge for about 30 sec when started cold. Charges at 16.5-17.0 volts. New battery and alternator were put on car, now prob is intermittant. Once warm seems to not happen again till cooled off for... Trouble codes: P0560 |
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| 1999 Pontiac Bonneville SE 3.8L dome lights VIN: 1G2HX52K8X Thanks in advance for any help. Interior lights will not turn off until they time out. Will not turn off at all when key is on. Tested drivers door switch and replaced BCM. Radio does go off when the drivers door is open. Thanks again for any help. Herb |
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| 2001 Pontiac Firebird 3.8L Temperature gauge VIN: 2G2FS32KX1 All gauges (except oil pressure) are controlled through Class2 datastream from PCM to IPC module. Vehicle speed, engine RPM, voltage meter, & fuel level all work fine with no trouble. The vehicle came in with no temp gauge operation. After reviewing wiring dia... |
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| 2004 Pontiac Sunfire SE 2.2L Low Beams VIN: 1G2JB52F53 Thanks in advance for the help. The car is a 03 Sunfire. Cusomter complaint was the low beam headlamps not working. We found and repaired a break in the low beam circuit at C101 connector under the battery tray. We now have low beams working with the park lamp... |
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| 2005 Pontiac G6 3.5L No Start, Poor Idle Quality, long crank some time car interm doesnt start has long crank . sometimes with remote start keeps cranking. acting like bad crank sensor but pattern looks ok.fuel psi good.seen tsb for pcm flash.cant get to act up in shop . happens hoy or cold |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2005 Buick Terraza CXL 3.5L battery VIN: 5GADX33L65 Hello all tech, thanks to all who responded to my help request.I learn how this system work.Respond from Christoper from Pa.is the most complete hope it will be in the archive once I post this.Like I said it happened twice in 2mos.I had the van for 2days and n... |
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| 1999 Chevrolet Blazer 4.3L oil filter VIN: 1GNDT13W2X took remote filter off and replaced upper gasket and oring like so many posted and checked lines also for leaks.I think it was the bigger oring above the oil filter that made it look like the filter itself was leaking. Thanks again to all that responded and i... |
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| 2001 Chevrolet Express 3500 6.5L Cuts out, Injection Timing VIN: 1GCHG39FX1 ATTENTION GRABBER!!! I am hoping to get some feedback Good or Bad from anyone who has ever had to make a Warranty Claim from DTech. Please read for full details. I first replace this pump in June 2008, February it returned with the ESO solenoid op... |
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| 2001 Chevrolet Blazer LS 4.3L Starting VIN: 1GNDT13W21 thanks to everone for the input i had to trace crank sensor wires i found a broken crank signal wire[the yellow one]repaired got spark back but some data step by step for distributor timing has it put in 180 out i did it twice no start lucky i had a bravada he... |
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| 2004 Chevrolet Silverado 3500 LS 6.6L removal information. VIN: 1GBJC34254 Thanks for all the replies particularly Allan from ohio,Chris from pennsylvania and mark from newfoundland.It really helped having the proper procedure. |
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| 2005 Chevrolet Cobalt LS 2.2L horn VIN: 1G1AL52F75 Hi , and thanks for all the help. The horn relay is part of the underhood fuse panel as so many of you replied. I replaced the fuse panel and the horn is working now, thanks again for all the help. |
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| 2000 GMC Savana 2500 5.0L No Start VIN: 1GTFG29M0Y engine would not start cold after spray some water on the ignition wires. needed major tune -up. |
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| 2000 GMC Jimmy Diamond Edition 4.3L temp control VIN: 1GKDT13W1Y the customer did not come back so i could check the blend door with a borrowwed tech2. 80 % sure this is where the problem was but wanted to verify before taking out dash. sorry guys. |
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| 2000 Pontiac Sunfire SE 2.2L Cuts out, Misfire VIN: 1G2JB1242Y THIS VEHICLE IS FIXED .WE SENT IT TO THE LOCAL EXHAUST SHOP FOR CAT REPLACEMENT, AND THAT DID THE TRICK. AGAIN THANKS FOR ALL THE HELP DAVID. Trouble codes: 300 (multiple missfire). |
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| 2000 Saturn LW2 3.0L pcm VIN: 1G8JW82R5Y Sorry for the delay, and, once again thanks for the reply's. I've been waiting for the customer to make up his mind. With the used BCM installed everything continues to funtion without a problem, so, it appears this was a BCM issue. Just had different symptoms... |
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| 2001 Saturn L300 3.0L No Start VIN: 1G8JW52R91 RECEIVED 4 REPLIES, STATING TO USE PASS THRU METHOD. WHICH IS WHAT WE WERE USING. EVIDENTLY WE HAVE SOFTWARE ISSUES TRYING TO PROGRAM THIS SATURN. TOOK VEHICLE TO LOCAL DEALERSHIP & THEY PROGRAMMED IT WITH NO PROBLEM. DON'T KNOW IF THIS IS A TIS PROBLEM WITH S... |
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