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Prev Professional Automotive Repair Technical Discussions for June 9, 2006
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Open Help Requests for GM
Help Request Answers
1992 Buick Century Special 3.3L Hesitation, Stall VIN: 1G4AG54N8N
Sorry, this may get a little long winded. Vehicle was towed in as crank-no-start. "Son" had been stopping by moms house trying to get her car to start(by cranking the starter untill battery finaly dead). Mon said the vehicle was running very badly at times and...
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1998 Buick Century Custom 3.1L lifter VIN: 2G4WS52M1W
1 lifter on #3 cyl wont pump back up after int gskt replacement felpro problem solver gskets
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2001 Buick LeSabre Limited 3.8L vibration VIN: 1G4HR54K21
vehicle has a vibration at 47-58 mph, vib. gone when shifted into neutral, vib. more severe with accel., vib seems to lessen when backing off throttle. cradle alignment good, steering,suspenison all tight, 4 wheel alignment at specs
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1969 Cadillac eldorado 472CID compressor
Hi guys. This old one has a separate expansion valve and POA valve. After evacuation the system will only take at the most 5 ounces or R134. The pressures act like a compressor not building pressure but if I use pinch off pliers the high side will start to ris...
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1983 Cadillac DeVille 4.1L Poor Idle Quality, Hesitation, Surge, Cuts out, Misfire, Poor Fuel Economy VIN: 1G6AD4788D
i replaced plugs again because they were black fuel fouled, and the o/2 because it was dead. it is better but owner said he never knew it was out of water but it was 2 gal low and it goes right back out, water pump out and backing gasket, he said never overhea...
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1988 Chevrolet K1500 Cheyenne 5.0L Stall VIN: 2GCDK14H4J
idles ok soon as you put in gear stalls out iac is not changing as it should. 2 pins read .5 volt 2 read battery volt, had re man computer 2 years ago im leaning to computer truc dropped at shop 5 shops worked on truck no codes
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1997 Chevrolet K2500 5.7L down shift VIN: 1GCGK24R2V
Hello to all the members. This truck seems to be taking us for a ride. The customer brought it in initially for a surge while maintaining a cruising speed, we found the distributor was 12 deg retarded according to the snap on scanner. We reset the cam retard a...
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2000 Chevrolet K2500 7.4L dome lights,horn VIN: 1GCGK23J6Y
hello, and thanks for any help on this one. i believe the customer stated that he found the truck w/a dead battery. he replaced battery, and said the horn was on all the time, so he pulled the horn relay, and brought the truck to us.when first installing relay...
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2002 Chevrolet Suburban 1500 LS 5.3L Front controls VIN: 1GNEC16T13
We installed a new compressor last month. Wensday the customer dropped it off and said he could only get hot air out of the drivers side. I check the refrigerant level and cooling. It is OK. When I started the vehicle with both driver and passanger temp contro...
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1990 Oldsmobile Cutlass Supreme SL 3.1L Hesitation, Cuts out, Stall, MIL Lamp on VIN: 1G3WS54T2L
Vehicle hesitates until warm. After warm up, slight accel causes dying. Checked DTC,s found MAP and TPS Codes. Tested systems and found low signal voltage to both (1.5v). After further testing with wiring schematics from Alldata, determined wiring from PCM to ... Trouble codes: 22 (TPS circuit open), 34 (MAP Sensor)
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1994 Oldsmobile Bravada 4.3L Excessive Emissions, Surge, Cuts out VIN: 1GHDT13W0R
This one comes back to haunt us every couple of months.Has no midrange power-falls flat when accelerating.Surges badly.Acts like it's running out of fuel.The 02 voltage drop to 0 as the problem happens.Fuel volume appeared good although I couldn't find a spec ...
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2002 Saturn Vue 3.0L Communication proble VIN: 5GCZ63B62S
Vehicle came in with strange things happing to IPC ABS ETC. When tech 2 was hooked and ran class 2 serial data all modules would reply back with sometimes alternating yes/no some would stay yes. RAn into a problem on a ford explorer once with strange things an... Trouble codes: U1016 (All communication problem codes with various modules), U1024 (u1068-), U1068 (u1096-), U1096
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Fixes & Summaries for GM
Fix/Summary Answers
1994 Chevrolet K1500 4.3L Cuts out, backfire thru intake VIN: 1GCEK14Z5R
Well we recieved some excellent suggestions. most concerning the distributor. But it turned out to be a bad plug wire. These were new wires 3 months ago (not put on by us). The bad wire did not show up on the scope the first 2 times but the problem became more... Trouble codes: 35 (idle air control motor).
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1995 Chevrolet Astro 4.3L brake hydra booster VIN: 1GNE119W6S
We finally fixed this Astro Van. Looks like we were overthinking. The problam was collapsed brake hoses. A few guys wrote in suggesting replacement of the hoses. My technician working on the vehicle didn't think that could be the problem because why would both...
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1987 Oldsmobile Toronado Brougham 3.8L Poor Idle Quality VIN: 1G3EZ1132H
sorry for the delay in closing this fix. customer did not want to pursue this problem any further and took delivery of vehicle. thanks to all those who replied
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1993 Pontiac Grand Am SE 2.3L Cuts out VIN: 1G2NE5436P
Customer finally located and brought in a complete cover assembly with all ignition parts included. The cover was used but fixed the problem. Thanks for all the replies.
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2001 Pontiac Grand Am SE 3.4L wheel speed sensor VIN: 1G2NF52E21
thank you for the help. most of the replies suggested a pigtail wiring harness for the rf wheel. that was right on the money. i peeled the wire loom off the harness and about 4 inches away from the connector was a crack in the insulation. the wires were not vi...
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