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Professional Automotive Repair Technical Discussions for February 28, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1996 Cadillac Seville SLS 4.6L Misfire VIN: 1G6KS52Y3T This thing is pulling out what i have left of my hair. It keeps cracking the number 5 plug. We have installed 5 new ones all Ac Delco by different sockets, by different Techs, and the Plug still cracks. It has all new parts around it. We look down the hole and... Trouble codes: P0305 |
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| 1995 Chevrolet Lumina 3.1L Unknown VIN: 2G1W152M45 HELLO EVRERY ONE . car came in with brake light broplem only the one in the mid. works the left nad the right do not work all the fuses aer ok wires all good brak swith has ben replace . thank you . |
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| 1996 Chevrolet K1500 Suburban 5.7L drive axle seal VIN: 1GDFK16R4T front axle seals are leaking at the differential. All data says to use a slide hammer to remove the axle shaft from the differential but this thing just won't budge.Passenger side came out just fine.Do I need to remove and or disassemble the differential? Any ... |
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| 2001 Chevrolet Silverado 1500 4.8L MIL Lamp on, No Communication VIN: 1GCEC19V51 No communication any time, brought in for Mil on all the time. (service engine soon light) will not communicate with the scanner. I used a jumper wire direct to battery on the ground side and it made no difference. Have any of you GM guys seen bad PCMs on thes... |
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| 1991 Pontiac Grand Prix LE 3.1L Excessive Emissions, Poor Idle Quality, Surge, Cuts out, MIL Lamp on VIN: 1G2WH54T2M This car has been a problem for months. Sometimes won't idle. Now car is acting up all the time.At idle, up to TPS of .98 volts, car runs lean, o2 at o volts, iac counts to 198. Above TPS of .98 volts, it snaps right out of it, o2 comes back, iac counts down, ... Trouble codes: 31 (Map Sensor high), 44 (lean fuel) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1999 Buick Park Avenue 3.8L harsh engagement VIN: 1G4CW52K4X Hello Fellow Techs, thanks to all who responded. I'm sorry this took so long. The reason is the customer took the car to a nearby transmission shop with our recommendations and had the PCS (pressure control solonoid) changed by them. The entire cost for parts,... |
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| 2000 Buick LeSabre Custom 3.8L Charging VIN: 1G4HR54K8I we received 13 replies with alot of good imfomation,most responses suggested intermitant drains caused by faulty alternator regulators or diodes,very common on delco alternators.some suggested checking for poor ground at right front fender.several informed us ... |
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| 1990 Chevrolet G20 Chevy Van 5.7L Poor Idle Quality, Stall VIN: 2GCEG25K7L I did find a problem with the pick up after removing the dist. this was a strange one as I scoped the pickup coil & got a good signal. Trouble codes: 44 (Lean exaust). |
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| 2000 Chevrolet Astro 4.3L No Start VIN: 1GCDM19W2Y Relpaded the fuel injector assy. Used scanner to cycle injector and the fuel pressure never change. R&R injector assy. it was very dirty. Replaced injector assy. Van run good with new injector. Thanks to all Brian |
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| 2000 Chevrolet Suburban 1500 LT 5.3L tcc VIN: 3GNFK16T1Y The Suburban did indeed have a valve body problem. Installation of part of a Transgo shift kit cured the symptom & made the trans shift nicely. I only recommend that you do this modification if you have been in valve bodies before. If not, I strongly recommend... |
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| 1996 GMC Yukon SL 5.7L transfer case VIN: 3GKEK18ROT It took a few weeks to get the Yukon back to take another look at it for the transfer case stuck in 4LO. I was stumped after running the diagnostic flowchart G from the Alldata and coming up with replace the TCCM and that not being the problem. I recommended t... |
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| 1999 GMC K1500 Suburban SLE 5.7L MIL Lamp on VIN: 1GKFK16R6X Thank you everyone sor the help. Customer reports problem is solved and light is not coming back on. Trouble codes: P0141 (O2 sensorheater malfunction Bank 1-Sensor 2). |
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| 1989 Pontiac Grand Prix 3.1L MIL Lamp on VIN: 1G2WJ14T5K Received 8-9 replies, most mentioning the problems with the PCM (the infamous GM 1227727), PROM, K/S, or connecting wiring. Since all these items had been changed (a couple more than once), it was decided to back off and re-evaluate. Turns out I was wrong ab... Trouble codes: 43 (ESC Problem). |
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| 1996 Pontiac Grand Am GT 2.4L Camshaft/ Power steering pump VIN: 1G2NW12TJT The chamshaft on this vehicle has a pressed in dive bushing to drive the power steering pump. The bushing had gotten pushed up too far into the camshaft. After spending too much time trying to get it to pull out we replaced the camshaft and all is well except ... |
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| 1998 Pontiac Grand Am GT 2.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G2NW12T2W Thanks for all that replied 5 in all. Most were correct in one way or another. First i checked the fuel regulator again and it was dry. I let it sit overnight with it disconnected (This was by chance) and next morning i came in and sure enough it had fuel leak... |
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| 1992 Saturn SL 1.9L brake pedal VIN: 1G8ZF5497N cust. has not returned. from replies received the most likely repair would be caliper slides rusted and not allowing proper operation. thanks for all the help. |
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| 1993 Saturn SL2 1.9L Reverse VIN: 1G8ZK5573P Greetings, most replies stated the the valve body is the culprit for the harsh park to reverse engagement. Pressure level too high being the issue. The failed mounts were caused by this pressure condition Customer opted to service the vehicle at a tranny shop.... |
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