GM Automotive Technicians Technical Discussion and Fixes for Jun 2, 2006 - iATN (Members Only)

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Open Help Requests for GM

	Help Request	Answers
	1997 Chevrolet Cavalier LS 2.2L Hesitation, Surge, Stall, MIL Lamp on VIN: 4G1JF3244V this vehicle at idle and light excel with foot slightly on gas pedal will exhibit a lean condition on the scan tool. leading to either low power/rough running or actual dying. during this lean phase you can rapidly depress accelerator pedal and drive through l... Trouble codes: P0172 (fuel trim), P0507 (iac)	View
	1998 Chevrolet Malibu 3.1L car VIN: 1G1ND52M6W looking for help with this vehicle. have tried replacing both front axles. tires were replaced also. there is no difference in the vibration. vibration comes through the whole car. worse on deacceleration through 123 kms/hour. any help would be appreciated. th...	View
	1999 Chevrolet Lumina 3.1L coolant system VIN: 2G1WL52M5X I'm resealing the lower intake on this car.I'm using GM gaskets and bolts as per TSB 03-06-01-010A.Called the GM dealer for parts.The part numbers for the bolts have changed.[...]...	View
	2001 Chevrolet Impala 3.4L compressor VIN: 2G1WF52E51 Good day to all, This vehicle has an intermittent no air conditioning operation when first started in morning. This is a manual A/C system. Customer also stated that the temperature gauge reads cold for the first 6-7 miles. After 6-7 miles the temp. gauge go...	View
	1997 Geo Metro 1.0L No Start VIN: 2C1MR2266V vechile towed in for crank but no start, can not get any spark out of vechile we have a good pattern out of cam reference from the distributor as compared to another running vechile. the only thing different from vechile to vechile is that one has 5 volt contr...	View
	2000 GMC Jimmy SLE 4.3L 4wd\2wd wwitch VIN: IGKDT13W3Y Customer states at times while driving at highway speeds the lights on the switches for 2wd or 4wd will start to go on and off as if someone was switching them. I pulled a code #C323 (Transfer case lock circuit low). Any one have any input before I dig into th...	View
	2003 GMC Sierra 1500 SLE 5.3L wipers VIN: 2GTEC19T03 This truck came in today with the wipers running all the time. There is no intermittent control but you can select fast or slow. Whenever the key is on the wipers are running. In the Mitchell trouble shooting information it says to try disconnecting the multif...	View
	2004 GMC Yukon XL 1500 SLT 5.3L battery Drain VIN: 3GKEC16Z64 ok i need help not very good with elec system shorts and drains.truck came in and seat was running after you would turn key off found worm gear in seat track striped and seat had no stoping point.replace complete seat motor and track assy .thought we were fins...	View
	1995 Oldsmobile Aurora 4.0L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1G3GR62C7S Hello fellow techs, I have a wierd one here. This machine came in with a missfire on #5 cylinder. My diagnosis lead to replacement of the PCM as it was not firing this cylinder's injector. The new PCM would not fire #7 injector. I retested the injector resist...	View
	1996 Oldsmobile Cutlass Ciera 3.1L Hesitation VIN: 1G3AJ55M9T OK guys this one is one you hate to have come in your shop. This car has been everywhere to get repaired now we have it. The car runs & idles fine. Starts fine. The problem it has is when driving it will not go. It just hesitates real bad. Going from a stop it...	View
	1999 Pontiac Montana 3.4L left rear and right front brakes VIN: 1GMDX03E2X After driving vehicle for a short drive, I rack the vehicle and spin the left rear and right front they are hard to turn. Left front and right rear spin freely. This vehicle is equiped with 4 wheel ABS. There is a modulator valve that bolts to the master cylin...	View

Fixes & Summaries for GM

	Fix/Summary	Answers
	1996 Chevrolet C1500 4.3L Misfire VIN: 1GBEC14W5T we have so far done a distributor flashed computer plugs wires cap rotor fuel pump module coil and have had very little success with this one we are going to look at the injectors again and se if there is anything wrong in that system. thanks for all the tips ... Trouble codes: P0300 (multiple cylinder misfire).	42
	1999 Chevrolet Silverado 1500 4.8L heater core VIN: 1GCEC14V5X Thanks for the help. We installed a new [...] connect at the heater core from the dealer. but we took the restrictor out of it first. Truck works fine now.Thank you	18
	2000 Chevrolet Malibu 3.1L Electronic VIN: 1G1ND52J3Y Thanks for the fast help I recieved on this. Nathan [...] all said climate control panel. I took panel out and while still hooked up could twist unit and tap on face and light would go from recr to fresh and sometimes compressor wo...	7
	2001 Chevrolet Impala LS 3.8L will not complete re VIN: 2G1WH55K91 the readiness codes have finally been cleared by driving the vehicle. As a hint to those not familiar with clearing these codes, it has to do with drive cycles and not how many miles you drive it. Gm has a drive cycle recomended that includes a 21/2 min warm u...	9
	2000 GMC Jimmy Diamond Edition 4.3L Rear Shocks load level Type VIN: 1GKDT13W4Y Thanks to all who replied. Several people took the time to checked for me and found that about 1/2 dozen dealers around the country have the shock I needed. I have it coming from Ohio. Just was a slip up by the counterperson at my local dealer, Funny thing was...	4
	1996 Oldsmobile Aurora 4.0L stuck in 2nd VIN: 1G3GR62CXT Stephen from Florida hit it right on the head, John from Michigan was close. The bracket that comes in the kit with the solenoids was not installed as there were no instructions. The bracket should hold the filter in place but it did not the filter came out. W...	4
	1991 Pontiac Sunbird LE 2.0L Poor Idle Quality, Stall VIN: 1G2JB54K3M Want to thank Michael from Oklahoma and Kevin from Wisconsin, you guys hit the nail right on the head. I replaced the idle air control, and cleaned the throttle body out to no avail at first, a few hours later started backtracking and found resistance at 74 on... Trouble codes: 42 (electronic spark timing).	7
	2000 Saturn LS2 3.0L alternator VIN: 1G8JW52R0Y first thanks to all the replies. i talked to the company that i buy my alternators from and he said that the alternators wre bad in fact.cheak charging system many times while car was here test drove many times no battery light and charging fine.talked with cu...	12

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