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Prev Professional Automotive Repair Technical Discussions for June 25, 2010
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1995 Buick LeSabre Limited 3.8L Stall VIN: 1G4HP52L3S
hi everyone I have this buick here stall ahter 45 mins of running.this car has been 2 gm dealers for 2 months they could not fix it.they put couple new ecm crank and cam sensors .they call gm tech line . the techline tell them to put new crank and cam connecto... Trouble codes: P0341
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1989 Cadillac DeVille 4.5L Hesitation, Cuts out, Misfire, Poor Fuel Economy VIN: 1G6CD515XK
Well i finally found a car thats killing me. This 89 sedan deville has been troubling me for a week and a half so far. It came in was a stumble under accel or pickup at cruise, first found no comm with ecm and tbi unit leaking fuel at regulator. Replaced ecm a... Trouble codes: 37 (mat circuit shorted), 40 (p/s switch circuit open)
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1995 Cadillac DeVille 4.9L Vents VIN: 1G6KD52B2S
This Cadillac came in with complaint of air condition not cooling.Compressor running but low side pressure high,high side low.Orifice tube full of metal. Replaced compressor,Accumulator Orifice Flush, Evacuate and charge system. Pressures normal nice cold air ...
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1976 Chevrolet Corvette Stingray 5.7L ride height VIN: 1Z37L6S433
I have the spec.s but am wondering at exactly what point on the car are these measurments taken? From the bottom of frame to the floor or from the bottom of stainless trim to the floor? The info. from Alldata doesn't specify. Thanks for your help.
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1989 Chevrolet Corvette 5.7L No Start VIN: 1G1YY2184K
Customer called said car would not start after driving. Car set for 15 min. Went out to go again cranks but no start. I came next day to tow, car started. Car brought to shop to check car. After first start of day next time trying to start cranks and will not ...
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1993 Chevrolet K3500 Silverado 6.5L Electronic VIN: 1GCHK39F1P
To all trany guys out there we need help. Ok we rebuit this tranny because reverse wasnt working, after install went for test drive everything was working fine all gears,but after driving about 20 miles it just shift back to third so i stop turn it off start i...
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2004 Chevrolet Suburban 1500 LS 5.3L Rear speed sensor VIN: 3GNFK16Z34
Hi all...need some GM help. This truck is driving me crazy. ABS light and brake light come on randomly and service brake sys message appears, speedo fluctuates and trans seems to go into neutral...engine will rev with no movement. Getting C0237 rear speed sign...
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2004 Chevrolet Silverado 2500 HD 6.0L lack of power VIN: 1GCHK29U34
this is a high mileage constrution truck.came to me with muffler shot.customer claims truck runs normal on 30 mile run to job site at 6am and 50 degree temps. but on return trip at 5pm and 90 degree hot day truck loses power .owner also truck probably does lot...
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2004 Saturn Ion Red Line 2.0L intercooler VIN: 1G8AY12P94
found intercooler coolant pump motor growling, blown ecm fuse, replaced pump and now is ok, vehicle had no coolant in intercooler system when car came in, vacuumed cooling system and held vacuum, I have no way to pressurize this system, my main question is has...
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Fixes & Summaries for GM
Fix/Summary Answers
1984 Chevrolet Corvette 5.7L Lighting VIN: 1G1AY0783E
thank you guys for pointing me in the right direction. the relays are supposed to be located in the left front wheel well. it seems someone has cut the relays out and wired them directly to the headlight isolation relay and it was all taped up. i thought it wa...
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1986 Chevrolet Corvette 5.7L 1-2 Shift VIN: 1G1YY0784G
Sorry folks for taking so long to close this out. This is a friends car so I was able to work on it in between jobs. I did find the problem. And there a TSB on this, 913717A. The gear on the end of the governor has a slice taken out of it. The repair will invo...
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1998 Chevrolet K1500 Silverado 5.7L Misfire, MIL Lamp on
Thank you all for your replies. Decided to replace injection system with multi port conversion, now missfires are gone. very strange problem and fix.
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2002 Chevrolet Silverado 2500 HD 6.0L instrument cluster VIN: 1GCHK29U52
Well its not burning gas yet but I got very excited when I found that if I arced pins 4 and 5 on the ALDL connector it works. Both 4 and 5 are grounds. Then I connected pin 5 circuit 451 direct to ground and dash works. Now I do have continuity to ground on ...
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2002 Chevrolet Express 3500 5.7L Hesitation, Misfire, MIL Lamp on VIN: 1GBJG31R92
Thanks everyone for the help. One person hit it right on the head. The main harness was sandwiched between the cowl and the tranny dipstick tube. It had rubbed thru enough to ground out the wire. Repaired the wires and rerouted the harness so it doesn't to... Trouble codes: P0335 (CKP sensor A Circuit fault).
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1991 Oldsmobile 98 Touring 3.8L No Start, Hesitation, Cuts out, Stall VIN: 1G3W53LOM4
I replaced the ignition module and the car started but still had a miss. Replaced the coil pack and now it runs like a top. Thanks for your help, C.J
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