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Professional Automotive Repair Technical Discussions for February 29, 2004 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1991 Buick Century Custom 3.3L Excessive Emissions, Poor Idle Quality, Cuts out VIN: 3G4AH54N3M TPS voltage will change drastically. This old junk belongs to a friend (also old),and customer that I rarley charge for work. he complained that it would at times start to run very bad and then quit. hard to restart and sometimes wonder if it will.the computor... |
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| 1998 Chevrolet Blazer 4.3L Battery VIN: 1243MN5699 Help guys ! I need a little backup here. Have a customer with a Delco battery that leaked battery acid through the positive terminal. Weve seen this many times and when cleaning the mess see lots of green corrosion on the terminal lug that comes out of the bat... |
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| 2001 Chevrolet Silverado 2500 HD 6.0L No Start VIN: 1GBHC24U61 Hello techs. I am sick of changing the fuel pump on my service truck. I work for a large construction company and we own a fleet of about 250 GM trucks, anyway we replace a lot of fuel pumps, but mine seems to be the worst. I am changing the fuel pump about ev... |
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| 2002 Chevrolet Impala 3.4L radio VIN: 2G1WF55E52 this car is new to our shop,it came in with a inoperative radio.what is strange we unhook the defroster grid or the radio antenna from the back glass it will start to work,even undone the ground side it will start to work.we replced the module because it looke... |
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| 1995 GMC C3500HD 7.4L timing chain This is one of the company's tow trucks, a very tired 95 with a LOT of miles. Stopped while driving and I determined that the plastic gear on the cam had shucked all its teeth. I replaced the timing set and removed the oil pan to clean out the plastic (no debr... |
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| 1995 GMC K1500 Suburban 5.7L Poor Idle Quality VIN: 1GFNK16K7S Vehicle idles 700 rpm range with noticable miss in park or neutral. When shifted into drive or reverse idle drops to low 500 rpm and really struggles. Accelerating through 1500 rpm band and into 2nd gear truck runs pretty good. Highway driving nothing noticabl... |
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| 2001 GMC Yukon XL 1500 SLT 5.3L Front tires VIN: 1GKFK16T91 This is my in-laws' primary vehicle. I first noticed the tires wearing slightly at 30,000 miles. I had been rotating them on a regular basis prior to that. I rotated at 30,000 and let it go. By 40,000 the tires were worn so badly we had to replace them. I chec... |
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| 1992 Pontiac Bonneville SE 3.8L starter VIN: 1G2HZ52L7N Location oif the theft deterrent fuse and the starter enable relay. Any method to test the key pod, and location of the left door switch. |
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| 2000 Pontiac Grand Prix GT 3.8L Poor Fuel Economy VIN: 1G2WP52K7Y HELLO EVERYONE. THIS MAY SEEM A MUNDANE QUESTION, BUT THIS VEHICLE HAS NEVER ATTAINED ANYWHERE CLOSE TO THE FUEL RATING FOR THIS ENGINE. ENGINE PERFORMANCE IS GOOD, BUT FUEL CONSUMPTION, WITH THE VEHICLE DRIVEN ON HIGHWAY 90 PERCENT OF THE TIME...HIGHWAY MILEA... |
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| 2000 Pontiac Grand Am SE 3.4L Brakes lock down VIN: IG2NF12E6Y Hi gang,got a customer here w/pontiac G/Am='00 w/abs= when it's driven over 10 miles,brakes begin to lock-down,today he drove a little further;church,etc. + brks.locked solid,had to tow it,the brk's had cooled enough to drive a short distance into bay. I loose... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2001 Chevrolet Cavalier 2.2L MIL Lamp on VIN: 1G1JC12491 Hi Fellow Techs: In my original post I had neglected to mention that I had already replaced the gas cap. Several replies referred to leaking caps. Not having an evap tester, I found the leak by 1:removing the schraeder valve at the test fitting,(This valve has... Trouble codes: P0442 (EVAP Small Leak Detected). |
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| 2002 Chevrolet Avalanche 1500 5.3L a/c VIN: 3GNEC13T32 Thanks to all that helped me. We overcharged the system by 3 oz per one respondents recommendation & to error on the side of caution we replaced the low pressure cut out switch. The system functions flawlessly. The chevy dealer lost another customer to the mor... |
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| 2000 GMC Savana 2500 5.7L Stall VIN: 1GTGG25R3Y It was the round connector at the front of the tank beside the purge canister. I started the van the next day and it ran for an hour with no problem so while it was running I lifted it up and went to the connector to wiggle test it and it was hot to the touch.... |
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