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Professional Automotive Repair Technical Discussions for November 25, 2005 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1995 Buick Riviera 3.8L park linkage VIN: 1G4GD22155 Hello everyone; This buick has high mileage but is well maintained. This car has the park pawl staying engaged in the reverse position, reverse engages but of course the car will not move. If you pull the shift lever down toward neutral enough to keep reverse... |
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| 2000 Buick Century Custom 3.1L Unknown VIN: 2G4WS52J4Y This is Eric over at Z's car care. I recently ran into a very difficult noise to pinpoint. Sounds like a metallic, rythmetic sound on right turns only. its coming from both front wheels. happens at slow speeds and cruising but not as severe. if driveing in a r... |
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| 1992 Cadillac Eldorado 4.9L Poor Idle Quality, MIL Lamp on VIN: 1G6EL13B6N This vehicle came in with a complaint that engine ran very rough. Checked engine and found a spark plug was not firing because of a wire defective. Tuned engine up and engine runs better than before. But, MIL's on; code 41. Checked cam sensor and circuit for o... Trouble codes: 41 (Cam reference signal) |
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| 1995 Chevrolet K2500 6.5L No Start, MIL Lamp on, HARD START VIN: 1GCGK29F6S This truck has a hard start cold. When it does start it smokes excessively and the check engine light comes on. According to alldata for code 36 - monitor fuel pw should be 1.95 at idle, mine is at 2.18 at idle and varies about .5 above idle, it states that it... Trouble codes: 29 (glow plug relay system), 36 (inj pulse width error - long responce), 73 (force motor currrent) |
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| 1995 Chevrolet Beretta Z26 3.1L Poor Idle Quality, Surge, Cuts out, Misfire VIN: 1G1LW15M5S Got this car in shop from used car dealer 1 week ago so I dont have any history with is. The dealer said that the car ran great and all of the sudden it ran awful, missing, jerking cutting off. brought car in shop, no codes present, fuel press tested within sp... |
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| 1996 Chevrolet Cavalier 2.2L Coolant Temp VIN: 1G1JC1245T Hello, This Cavalier is overheating intermittantly. The customer will drive the vehicle to work (10-15 miles) and the vehicle will drive fine. No overheating issues. When the customer goes to drive home, the vehicle will run up into the red zone after 2-3 mil... |
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| 2000 Chevrolet Metro LSi 1.3L Misfire, MIL Lamp on VIN: 2C1MR5222Y has intermittent misfire,p0303,cyl.3 misfire. #3 wire was rusted at plug, clean plug and replace wires,still#3 misfire,swap 1and3 plugs,still#3 misfire,swap 1-4 and 2-3 coils still #3 misfire.swap #3and #4 injectors,still #3 misfire,check injector pattern , ok... Trouble codes: P0303 |
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| 2004 Chevrolet Impala 3.8L No Start VIN: 2G1WF55K14 this car runs @ 20 miles then dies while driving. it has crank signal and cam signal but does not pulse the injectors. when yiou replace the module it will start right up. what i need to know why it keeps blowing the module. city has 25 of these cars but we ha... |
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| 1992 Geo Prizm 1.6L brake and alt lights on intermittently VIN: 1Y1SK5463N this one has us stumped. our customer came in complaining of her alternator and brake lights (on the instrument panel) coming on simultaneously when she accelerated. also her exterior and dash lights get brighter and dimmer as this happens. we have tried every... |
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| 2003 GMC Yukon XL 1500 Denali 6.0L Surge VIN: 1GKFK66U83 this truck keeps coming up with lean codes on both banks,it has not come up on me personally but every time the costomer takes the vehicle it comes on that very day. so i checked the fuel press good according to all data spec. so then i check mass air flow sen... |
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| 1989 Pontiac Grand Prix 3.1L Excessive Emissions, No Start VIN: 1G2WJ14T2K This car was towed in from another shop. It won't run, but tries to run for one or two seconds. There is no service code, it has new crank sensor, new module, new coils, new plugs, three new injectors and new ECM ( rem ). It has good compression and good injec... |
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| 1996 Pontiac Sunfire SE 2.2L Oil PSI VIN: 1G2JB5243T When you start the engine had 50psi (cold) within 5 Min it's down to 10psi rods & mains have .002 clearance. |
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| 2001 Saturn L200 2.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G8JU52F21 Hello, I hope you can help. Vehicle was dropped off, with a rough idle, like it wants to stall. No cel @ this time. Checked for vacuum leak, found none. Inspected spark plugs, ignition system for signs of prob's, found none. the wierd thing is, the cooling fan... Trouble codes: P0300 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2002 Buick Rendezvous CX 3.4L thermostat VIN: 3G5DA03E02 Thanks to everyone that responded. To answer the very popular question 'why flush a dex-cool system?', the answer is that Dex-cool is NOT usually good for 150,000 miles. This particular customer had another G.M. vehicle and his coolant turned into what we call... |
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| 1994 Chevrolet C3500 Cheyenne 7.4L pedal VIN: 1GBKC34N6R We replaced the aftermarket clutch and pressure plate with OEM parts. The fingers on the aftermarket pressure plate must not have had the right spring pressure or travel length. As for the bleeding problem overnight I think that because the aftermarket clutch ... |
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| 2000 Chevrolet Blazer LS 4.3L No Start VIN: 1GNDT13W9Y Thanks for the info,we went back over the wiring harness,including the area in behind the engine that is so hard to reach,pulling pushing and wiggling and could not reproduce any amp changes in either circuit. Customer decieded to try it again rather then pa... Trouble codes: 135 (o2 sensor heater [...] sensor 1), 147 (o2 sensor heater circuit [...] 3), 155 (o2 sensor heater [...]). |
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| 1994 GMC Sonoma SL 2.2L Belt VIN: 1GTCS1448R Thanks to all that replied.. I replaced the tensioner and the belt, And it now sits away from the crank-pulley. Dealer wanted about 150 for the tensioner which is crazy. So I made a call to a local 'Murrays' $35 bucks another 20 for belt.. Customer Happy...I a... |
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| 2002 Saturn L100 2.2L anti-thief & fuel gauge VIN: 1G8JS54F72 The problem with our Saturn was the BCM. Evidently, when the car was jump started either the cables were crossed or a voltage surge took out the Body Control Module. The original shop took the car to the nearest Saturn dealer for a new module and programing. |
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