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Prev Professional Automotive Repair Technical Discussions for February 25, 2006
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Open Help Requests for GM
Help Request Answers
1993 Buick Skylark Custom 3.3L No Start VIN: 1G4NV54N5P
I got this vehicle from another shop who has thrown their hands up and I am about to do the same thing. Car originally came in with a starter running even with the key out of the ignition. The shop installed a new starter, battery and found that the minute the...
1996 Buick Century Custom 3.1L No Start, Stall VIN: 1G4AG55MOT
This car came in about a month ago with a stall/no start complaint. It had good fuel pressure on start up but it would begin to fall after the car ran a while sometimes just a few minutes or sometimes an hour or more. It would fall all the way down till it eve...
1994 Cadillac Seville SLS 4.6L Poor Idle Quality, Hesitation VIN: 1G6K5297RU
Number 8 cylinder has little drop when doing injector drop test using onboard system , has low compression ,oil doesnt help .must have a valve problem .My question is ,has anyone seen vavle or cam trouble with this Northstar engine .We would like to heal it wi...
1986 Chevrolet S10 2.8L fuel gage VIN: 1GCB514R2G
Need help on this one.pulling hair out now.thanks in advance for any tips.
1993 Chevrolet Camaro Indianapolis 500 Pace Car 5.7L No Start VIN: 2G1FP22POP
I have a start and run 3-5 secs. and die I am losing injector pulse . I have a code 41 and have ck that by gm trouble tree and no problems. I KNOW CODE 41 KILLS THE INJECTORS TO PREVENT FLOODING JUST CAN'T SEEM TO DIAGNOSE ANY PROBLEMS W/SYSTEM AND GET INJECTO... Trouble codes: DTC, 41 (est circuit short or open)
1996 Chevrolet S10 LS 4.3L 1-2, 2-3, 3-4, tcc VIN: 1GCCT19W9T
Hey GM Techs, This is my own personnal vehicle. It intermittantly has a check engine light, no power, and gear shift indicator light goes out. Once i get the vehicle going, it seems ok power wise. Keeps setting code for shift solenoid electrical and tcc electr...
1997 Chevrolet K2500 Suburban LT 7.4L Fuel Gauge VIN: 1GNGK26J6V
I have a truck in the shop that was wired incorrectly for the fuel sender we repaired the wireing as per the tech manual and now the gauge reads high at all times. I notice in the testing they have you test at 0-90 ohms but the sender is a 40-200 ohm sender I ...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac Catera 3.0L Poor Idle Quality, Misfire VIN: W06VR52RSX
Thanks to all who responded to recent inquiry about the poor idling Cadillac. I rechecked for vaccum leaks and found none. I did find the check engine light not working. I pulled the timing belt cover back and discovered the belt had been replaced. I found the...
1972 Chevrolet K-10 307CID Mechanical VIN: CKE1421121
we have checked flow at the rear and fluid sqirts to the far side. we have also tried pads from metallic to organic (oe was probably organic). the rotors and drums have been resurfaced. we even pulled all of the guts out of the combination valve to make absolu...
1993 Pontiac Grand Am SE 3.3L inj pulse eng off VIN: IG2NE14N3P
Found new crank sensor was putting off intermintent signals. I did not install it so I do not know what company supplied it. It must of been internally shorted as it would put off signals with engine not running.
1995 Pontiac Bonneville SE 3.8L MIL Lamp on VIN: 1G2HX52K4S
Thanks for the replies and info. Ed's info about the year on the scanner was close. My snap-on solus quit on me the other day and I borrowed an otc. When I plugged it in and entered the info BINGO I had communication and found a knock sensor bad from the engin...
2001 Pontiac Grand Am SE 2.4L wont start at times VIN: 1G2NF52T81
HI AGAIN Y'ALL !!! Thanks for all your help. The lock cylinder fixed it) That is as some said the passlock sensor is part of the lock cylinder housing. At fist I thought it strange about the key not being part of the kit. Then as I went to get the new cylind...
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