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Professional Automotive Repair Technical Discussions for December 16, 2005 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1997 Cadillac DeVille 4.6L Cuts out, Stall VIN: 1G6KD52Y9V this vehicle has really been a pain,no codes found and problem does not happen with any regularity.dies only on decel and only after 30 min. or more of driving time,engine will restart no problem, vehicle runs normal rest of time |
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| 1993 Chevrolet Lumina Z34 3.4L not sure VIN: 2G1WP14X2P I have a problem vehicle,customer said vehicle has been sitting in his yard for a couple months,due too a bad oil leak and a coolant leak. Someone had replaced bad intake gaskets just before the car was parked,i have no history on this vehicle,never seen it be... |
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| 1994 Chevrolet Caprice Classic 5.7L No Start VIN: 1G1BL82P9R ok, This car came in with a no start, scanned no codes, Pulled the # 1 plug, and was dripping wet with gas, Replaced all plugs after checking compression and spark, Floods out immediately, Injector pulse width is 38.8 now, but it has been as high as 50 ms, cha... |
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| 1999 Chevrolet Astro 4.3L MIL Lamp on VIN: 1GNEL19W5X HELP! can move distributor shaft somewhat. left to right and shaft has minor movement up and down. any help would be greatly appreciated. New GM dist is about $300. Are the 4.3 distributors a common problem? Plugs and wires are good. Again after replacement of... Trouble codes: P1345 |
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| 1999 Chevrolet Astro 4.3L cluster VIN: 1GNDM19WXX Customer came in with van,the guages were inop and the turn signals were inop,and there was no comm.with the pcm or the theft module.Checked that all fuses were ok,I noticed that while the engine was running, I could slightly turn the key toward the start posi... |
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| 2000 GMC K3500 Sierra SLT 7.4L MIL Lamp on VIN: 1GTHK33J7Y fault code #po112 and p1112 are stored in memory. iat temp. reading goes to 300 and voltage drops to zero. have tried new iat sensor and checked wiring at sensor. does not fail all of the time. seems to do it more on acceration when warm. any ideas. thanks in ... Trouble codes: P0112, P1112 (iat votage reading low - intermediate problem) |
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| 1997 Pontiac Firebird Formula 5.7L speedometer VIN: 2G2FV22P8V The speedometer will intermittently drop out to zero and the transmission will either go into limp mode or actually feels almost like it's slipping. Rarely, it will start out with no speedometer and in that case, it won't upshift. It's probably in second (lim... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1990 Chevrolet Lumina 2.5L No Start, Poor Idle Quality, Cuts out, Stall, MIL Lamp on VIN: 2G1WL54R4L ok, First thanks for all the replies, I had the scanner hooked up, and kept loosing power, checked the power into the computer on the Orange batt + wire, and had nothing, traced the wires, and found corrosion in the splice in the main harness, that was loosing... |
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| 1996 Chevrolet C1500 Cheyenne 5.7L Hydraulic VIN: 1GCEC19R9T Against what was suggested by most (duck & run)I decided to try to exorcise the demons from this vehicle. I put the ABS unit back in with a new prop. valve from a dealer. Bled the whole system(Power, Vaccuum and Manual) With and without valve depressor install... |
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| 1999 Chevrolet K1500 Suburban 5.7L noise VIN: 1GNFK16R3X thank you for all the replies.i had the wife bring it in and found that a 6 mo old u joint had 1 cup almost completly shattered.found that the grease hole to the cup was not machined open so it was not getting grease. |
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| 2000 Chevrolet Silverado 1500 4.8L MIL Lamp on VIN: UNKNOWN well guess I should have kept to the old KISS adage keep it simple stupid!! Replaced vent solenoid and all is well thanks for the replies!! Oh and up in good old northern ontario with all the salt and crap they put on the roads up here much easier to drop a ta... Trouble codes: 0449 (vent solenoid circuit). |
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| 2002 Oldsmobile Bravada 4.2L Misfire, MIL Lamp on VIN: 1GHDT13S72 thanks toall that replied. i think Michael [...] nailed it with cracked cylinder liner. couldnt prove it but nothing else left. compression; static and running, the same on 3&4 as #5.rechecked current ramp waveforms,coils & injectors looked good.cylinder lea... Trouble codes: P0305. |
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| 1989 Pontiac Grand Prix SE 2.8L valvetrain VIN: 1G2WP14WXK I would like to thank all technitions that assisted me with this problem on this Grand Prix.I have possitively identified the problem with this engine based on the help i recieved and i honestly dont think i would have done it without the assistance.The sympto... |
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| 1995 Pontiac Firebird 3.4L valve adjustment VIN: 2G2FS25S22 thanks for all the reply's. after the crazy day was over i went back and adjusted the valves by adjusting the intake just as the exhaust started to open and then adjusted the exhaust just as the intake was going to close and let the car sit over night. this mo... |
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| 1998 Pontiac Grand Am SE 2.4L bleeding VIN: 1G2NE53T6W Thanks for the replies. I searched the internet and found a procedure for turning the gears counterclockwise before bleeding. It didn't work. So we sent it to the local dealership. It seems the ABS module I installed from another vehicle with the ABS unit di... |
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