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Professional Automotive Repair Technical Discussions for February 7, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1989 Buick LeSabre Custom 3.8L No Start VIN: 1G4HP54C7K hello out there-i need some advice on this one-this vehicle has been in our shop for over two months-we look at it when were bored-when you crank it over it sounds like its out of time-it backfires-kicks back on the starter-pops thru the intake-if you floor th... |
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| 1986 Chevrolet Corvette 5.7L Left Front Caliper VIN: 1G1YY0788G Trying to solve a sticking/hanging LF brake caliper. I know whats going on in that we can open the bleeder and caliper releases. Master cylinder and brake hoses good. Caliper pistons and slides operating freely. To our knowledge this system offers no codes an... |
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| 1988 Chevrolet K2500 Cheyenne 5.7L Poor Idle Quality VIN: 1GCFK24K1J Help please! I'm having a problem with this pickup. It's running lean and I'm not sure where to go from here. Spraying carb cleaner into the throttle body at idle or at higher RPM's smooths things out and it sounds better. The fuel pressure is 12 psi at idle, ... Trouble codes: 44 (System lean) |
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| 1994 Chevrolet K1500 5.7L Front Differential VIN: 2GTEK19K8R This vehicle has a manual shift Transfer Case to engage the 4 wheel drive. While shifter is in 2 wheel drive. After 3 or 4 traffic stops. While accelerating at low speeds, It sounds like 4 wheel drive is trying to engage. Gears are grinding in the front diff ... |
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| 1995 Chevrolet Astro CL 4.3L Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1GNDM19W3S The problem is that it runs rich all the time. When I plug off the pcv valve then my o2 starts reading. Until I do this the mv are 850 or higher. I have tied a new pcv valve also and this did not change anything. Trouble codes: 45 (Rich exhaust) |
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| 1996 Chevrolet Monte Carlo Z34 3.4L Mechanical VIN: 2G1WX12X6T This car came in for a no start. Cranked engine over and sounded like timing chain or belt out. Didnt know this one has a belt and a chain till I did some looking in manual. Checked compression on front three cylinders and got 30, 30, and 80. Read in the archi... |
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| 1998 Chevrolet Tracker 1.6L MIL Lamp on VIN: 2CNBE1868W I need some help, came in with a cel, egr system malfunction. I have vac. at the egr valve and the ports are clean 100%. this has a egr vac. solenoid, vac. diag. solenoid, and a btv. at the diag solenoid it tees off and goes to the map sensor. what does this d... Trouble codes: 400 (Egr system malfunction) |
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| 1993 GMC C1500 Suburban 5.7L Drive Belt VIN: 1GKEC16K3P This Surburban keeps eating belts. The only thing that does not look right is the idler pulley. It looks too far in. Everything else looks fine. Checked TSB's and fix database and found two items to consider, belt and alternator mounting. Eliminated belt by us... |
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| 1998 Oldsmobile Silhouette Premiere 3.4L steering wheel, body VIN: 1GHDX03E2W please help. this vehicle came in for a vibrating noise when turning the steering wheel to left or right. noise/vibration can be felt throught the entire vehicle and felt in steering wheel. can be duplicated only when turning driving or turning the wheel in pa... |
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| 1999 Pontiac Grand Am SE 2.4L drl VIN: 1G2NE12T2X Hello Group, 1999 Grand Am that customers complaint is SES light is on. I scan the vehicle with a Tech2 and find a B2600 DRL malfunction. I notice right away that the right headlamp is inop. I install a new 9007 bulb. While looking over all of the lights on th... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1994 Cadillac Seville SLS 4.6L Poor Idle Quality VIN: 1G6KY529RU what I beleive is the transmission code for line pressure control solonoid current was stopping the ecm from relearning, although the logic charts did not list that code, but when you read what the pcm does in default it makes sense. trouble shoot code 76, tur... Trouble codes: 55 (tps memory out of range), 80 (no tps learned value). |
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| 1998 Chevrolet Cavalier Z24 2.4L Poor Idle Quality, Cuts out, Misfire, MIL Lamp on VIN: 1G1JF12TXW Well , thanks again for all the help from a great bunch of guys. after about 20hours on this car we finally ohmed the injectors , they were all right on target, so we hooked up my motorvac to take a injector drop test and ran it on the machine instead of the c... Trouble codes: P0300. |
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| 1999 Chevrolet Silverado 1500 4.3L No start VIN: 1GCEC14W9X To all who responded thanks. The problem was a two fold condition. The fuel pump and an electronic problem. The ignition module that was installed new was faulty, an aftermarket module. Installed new OE module. The VCM was R&R for no fuel gauge. Everything is ... |
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| 1998 GMC Yukon SLE 5.7L auto headlights VIN: 1GKEK13RXX Of the four help replies I recieved only one sent by Kenneth [...] showed that he understood what I was talking about. He had a similar problem with a 99 Yukon and told me to pull the autoheadlamp module and check it for a damaged circuit board. I did and tha... |
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| 2000 GMC Savana 1500 4.3L Rear Wheel Speed Sensor VIN: 1GTEG15W7Y The fix for us was to install another new set of AC Delco rear shoes and new wheel cylinders. We found no other problems anywhere else in the system. |
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