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Prev Professional Automotive Repair Technical Discussions for April 11, 2011
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Open Help Requests for GM
Help Request Answers
2004 Cadillac XLR 4.6L MIL Lamp on VIN: 1G6YV34A24
Hi Guys, got a good one. Vehicle came in with codes, P1101 and P0068 originally with intermittant reduced power message and vehicle running rough. Found some TSB's for reprogramming issues so Updated the calibrations with the MDI. Never had another issue with ... Trouble codes: P1101, P0068
1996 Chevrolet Cavalier LS 2.4L Poor Idle Quality, Misfire VIN: 1G1JF52T6T
We are struggling with this cavalier. As you can see by the above repair history this car has had all the things replaced that usually cause this problem. I am at a loss to figure it out. We even flashed the computer on the outside chance it would help. I know... Trouble codes: P0301 (Cylinder 1 misfire)
1999 Chevrolet Cavalier 2.2L no crank, no dash lights VIN: 1G1JC5243X
basically no crank no power "on dash board"when key turned too run. start position. started at ignition switch replaced that from prior experience. so no help . so started looking at wiring diagrams theres 11 wires on ignition switch and i can not find a diagr...
2003 Chevrolet Astro 4.3L No Start VIN: 1GNDM19X03
hi every body i have this astro 4.3 van. that wont start when humid i did change cap and rotor etc.twice also new coil of course wires and plugs .new fuel pump sprayed everything with wire dryer no help .only when humid a im thinking computer now but not sure ...
2003 Chevrolet Suburban 1500 LT 5.3L Will not shut off VIN: 3GNFK16Z53
This 'burb rolled through the door just as I was about to go home, it will not shut off at all unless you pull the fuel relay to kill the engine, then pull the battery cable to kill the draw. Customer had someone with him that pulled codes, in a rush to get it...
2006 Chevrolet Equinox LS 3.4L park lights, instrument panel lights VIN: 2CNDL63F16
Greetings all. This Equinox intermittently blows the fuse for the park lamps and dash lights. If a new fuse is installed it seems to last anywhere from 1 day to a week. I have found the Park Lamp switch Signal wire (circuit #74, light blue) is open. From looki...
1999 GMC Sonoma SL 4.3L No Start VIN: IGCCS19X2X
fuel pressure ok,,spark ok,no injector pulse..Fuse ok and power to injectors,,injectors not being turn on & off..Suspected bad ECM ,so swap it out for an ECM on a 1997..Although computer is different ,vehicle started but ran very rough for obvious reasons..So ...
1993 Oldsmobile 88 Royale LS 3.8L Battery VIN: 1G3HY53L3P
Hi everybody. We have a 1993 Oldsmobile 88 3.8L in that customer states that when the car is left alone for 3-4 days the battery is dead. I have my meter in series with the battery to see exactly what the draw is and it is 16-19mA. This does not seem excessive...

Fixes & Summaries for GM
Fix/Summary Answers
1997 Buick LeSabre Custom 3.8L Misfire VIN: 1G4HP52K1V
thank you for all you help, this one is fix,we replace the crank pos sensor and that fix it so dont know why it look good in the scan tool but that fix are problem thanks for all you replies have a good day. Trouble codes: P0300.
2002 Cadillac Seville STS 4.6L Radio Navi Unit VIN: 1G6KY549X2
First thanks to all techs who send replay. I was able to get correct disc GM part # [...] with software V3.10 Procedure requires insertind cd in navi unit closing manually door then disconnecting power from navi unit (remove fuse in rear fuse center- under...
2003 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC52F83
The vehicle is fixed. My thoughts were the same as Andrew's and Scott's because this was a new problem. I returned the BCM defective and replaced with another "new" GM BCM. That fixed the issue. I noticed 2 things. First, since I was returning the defect BCM I... Trouble codes: U1000.
2010 Chevrolet MALIBU 2.4L No Start, Stall VIN: 1G1ZA5EBXA
After taking several voltage checks and recharging battery after several load tests battery would only show borderline we decided to put a new battery in car.car fired right up let sit over weekend and it started right up monday morning let customer take car h... Trouble codes: B1325 (Device power 1 circuit voltage below threshold).
1998 GMC Savana 3500 5.7L Misfire VIN: 1GDHG31R9W
Hi Guys, thanks to everybody for your help. Readjusted the valves and vehicle started then adjusted with vehicle running, loosened till clacked then tightened till stopped then a quarter turn more. I had a spare injector body so put that in now it misfires 2 a... Trouble codes: P0300.
2006 GMC Envoy XL Denali 5.3L mode door VIN: 1GKET63M66
well this one is fixed the mode door motor was working good the thing is when you turn the temp up to 90 the air flows through the vents porly turn it to 70 flows like crazy we had another one in here and it worked the same way go figure.thanks to all that rep...
2003 Oldsmobile Alero GL 3.4L No Start VIN: 1G3NF52E53
We did the relearn procedure and the car starts now. We were trying to troubleshoot the system using alldata. We did not get the voltage readings we were supposed to get out of the BCM. This would indicate a BCM failure, but, as you might guess, this was not t... Trouble codes: B2960 (security sensor data incorrect but valid).
2001 Saturn SL1 1.9L Calipers VIN: 1G8ZH528X1
Thanks to ya'll that helped, never had a front brake hose problem before. I found the tech. had used a vise grip on the hose the first time, he worked on the car. A new set of new front brake hoses fixed the problem. Bruce
2003 Saturn Ion-2 2.2L shifting VIN: 1G8AJ52F33
thanks for all the great info on this car -we had put car in air to just look it over and look at controls , we then reset computer -customer said car ids doing graet so I guess it had a loose coonections on the ttc switch ??? 2 trans shops said it needed a ne...
2003 Saturn L200 2.2L noise VIN: 1G8JU54F83
sent customer to a muffler shop which installed an aftermarket convertor. which did take care of the noise. customer was not willing to spend the $1500 or so for oe convertor which i dont blame them.
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