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Professional Automotive Repair Technical Discussions for October 21, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1997 Buick LeSabre Limited 3.8L speedometer VIN: 1G4HR52KXV Hi iatn I have this vehicle booked in next week to repair an intermitent inoperative speedo.It has an analoge dash.I drove the car today with my MT2500 hooked up and when the speedo droped out I still showed a proper KPH pid.Reading the circuit description in ... |
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| 1991 Cadillac DeVille 4.9L MIL Lamp on VIN: 1G6CD53B0M we are still getting code 41 upon start up - erratic square wave coming out - replace cam sensor 3times with oe part - module twice with oe part - check position of wiring at connector - cleaned all three grounds - what else could this be Trouble codes: 41 (cam sensor) |
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| 1999 Cadillac Catera 3.0L MIL Lamp on VIN: W06VR54R0X Vehicle came in for MIL light being on. Found codes 171 and 174 (Fuel system lean bank 1 and 2). Engine runs good, no driveability complaints. Did fuel injection service, no vacuum leaks, air injection working properly, fuel pressure was at 45psi specs was 40 ... Trouble codes: 171 (System too lean bank 1), 174 (system too lean bank 2) |
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| 1993 Chevrolet C2500 Cheyenne 6.5L hard start VIN: 1CGGK29FOP hard start when hot replaced electric lift pump. test glow plugs and relay. |
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| 1995 Chevrolet Corsica 2.2L engine VIN: 1G1LD5540S Good morning all. Car was towed in - cranks - no start. Suprised to hear fast crank like no compression. Customer said the engine made a pop noise and died. I suspected a timing chain problem. Check spark ok. Add carb spray to intake - no difference. I wanted ... |
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| 1996 Chevrolet C2500 Suburban 6.5L ABS/hydraulic system VIN: 1GNGK26FXT Hello fellow techs, This suburban came in with a soft brake pedal & excess pedal travel. Customer replaced brake pads approx. 4 months ago & pushed caliper pistons back with bleeders closed but symptom did not appear until 2 weeks ago. Inspected pads, shoes,... |
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| 1998 Geo METRO 1.3L overheating VIN: 2C1MR5227W customer came in with overheating condition on high speed after inspeciting the cooling system we found radiator pluged up,we replace radiator,thermostat and radiator hoses (lower and upper)drove the car for 20 miles and overheated again,then replace water pum... |
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| 2001 GMC Sonoma SL 4.3L frt. diff. VIN: 1GTDT19WX1 Hello Group, Customer came in with whooping noise in vehicle.On road testing,the noise starts at 25 mph & stays until you put it in 4wd then the noise stops,so we ruled out tires.Sounds like frt. diff. Anybody heard this. Any help appreciated.Thanks in advance... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1992 Buick Park Avenue 3.8L Air Conditioning VIN: 1G4CW53L4N Hello to all! We have a fix. I want to thank all the members who took the time to respond with help and information to my request. According to the members the codes are; 135-E&C data line failure with heater andA/C controle assembly. 140-driver air mix mo... |
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| 2000 Chevrolet Silverado 1500 4.8L Hard Start VIN: 1GCEK14V2Y Well, gentlemen, I appreciate the help. After the 30th email came back saying the same thing as the first 29, I decided you guys might be on to something. So, after a week of waiting to get the truck back into the shop, I got my chance to face it. I walked out... |
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| 2003 GMC Sierra 2500 HD 6.6L Coolant Reservoir VIN: 1GTHC24173 I had six replies on this problem and all were quite prompt. Kenneth [...] hit the nail on ... |
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| 1999 Oldsmobile Intrigue GL 3.8L Mechanical VIN: 1G3WS52H5X sorry it took so long to close this post but i've had lots of computer problems lately. the vehicle was returned to the customer without really being fixed I did find a blown fuse causing the secondary air code but that didn't cure the rough running condition.... |
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| 2001 Pontiac Firebird Formula 5.7L traction control VIN: 2G2FV22G01 Thanks for the help. I decided to look at the throttle control closer. I took the gears off of the top & found that the bushings on the motor were very tight. Cleaned and lubed gears and bushings, reassembled and all is fine! I guess the first time you touch... |
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| 1998 Saturn SL2 1.9L 2-3up sft 3-2dwn sft VIN: 1G8ZK5279W FINALLY, IT'S FIXED!! I drove down to the Saturn dealer yesterday and had the used PCM that I bought reprogrammed and that fixed it. It now shifts into 3rd, the 3rd gear code didn't reset and trans doesn't slip or flare before shifts.What finally convinced me ... |
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