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Prev Professional Automotive Repair Technical Discussions for October 3, 2005
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Open Help Requests for GM
Help Request Answers
2001 Buick Century Custom 3.1L abs VIN: 2G4WS52J01
Hello all. Could use a little help on this Buick. Car came in with service vehicle soon, abs, & trac off lights on. Checked codes with mastertech, recorded freeze data & cleared codes. Test drove car, lights came back on right away. (around 15mph). C1232 seems...
1948 Chevrolet Truck 350CID No Start
This is a old Ford Truck. Someone restored and installed Chev engine. I replaced the engine 2 years ago with a reman engine. I also installed reman dist. ( 74 or 75 ) model dist. But since then, about every 3 to 4 months it has to be towed in with no spark. I ...
1983 Chevrolet Monte Carlo CL 5.0L electric window VIN: 1G1AZ3772D
good day all! i have a problem with the passenger side power window not working in the down position using passenger side power window switch. the window goes up with passenger side power window switch, using the drivers side switch, the passenger side window ...
1990 Chevrolet K2500 Cheyenne 5.7L Poor Idle Quality, knock sensor (yes) VIN: 2GCFK29K4L
hello to all you great gm techs. gota weird one after rebuild tbi(one inj. bad fuel presure reg leaking). After road test notiiced lack of power-- no codes-- but while looking at pids the knock sensor reads yes with engine running, no when engine off,tested an...
1991 Chevrolet S10 2.8L No Start VIN: 1GCCS14R7M
This truck starts and runs fine during warm weather, on a cold morning it won't start unless you give it a shot of starting fluid. After it starts once it's fine for the rest of the day. When this happens it has no injector pulse,untill it's running but not wh...
1994 Chevrolet S10 Blazer 4.3L Hesitation, Surge, MIL Lamp on, Code 43 -ESC Problem
Essentially, there are two problems. (1)When the throttle is snapped from idle in park, or accelerated in gear , it will bog down then slowly recover. (2)Anytime the code (43) is cleared, it comes right back within 5 or 6 seconds, despite repairing the broken ... Trouble codes: 43 (ESC problem)
1995 Chevrolet Blazer 4.3L Poor Idle Quality VIN: 1GNDT13W8S
Truck Came in with high idle concern, We tested IAC motor determined it had failed and replaced it. Perfect idle and ran smooth... 4 days later same condition determined IAC faulty and replaced, GM Part. 2 days later, you guessed it same thing, HIGH idle. This... Trouble codes: P0507
2001 GMC C3500 HD 8.1L left front speed sensor
keeps melting left front speed sensor, has anyone seen anything like this before on these?
1998 Oldsmobile Cutlass 3.1L Mechanical VIN: 1G2JD1JW35
has anyone come across an 88 olds calais that jumped out of park and into gear(drive or reverse).
1992 Pontiac Bonneville SE 3.8L MIL Lamp on VIN: 1G2HX53LXN
Hello! Vehicle came in with code number 42 (no camshaft reference signal). Customer had replaced cam sensor prior to us getting it! Checked wiring at cam sensor first. Found all three wires going to cam sensor with insulation very brittle and falling apart. Ba... Trouble codes: 41 (no camshaft reference signal)
1992 Pontiac Bonneville SE 3.8L Hesitation, Misfire VIN: 1G2HX53L7N
Cleaned MAF, OK for a day then CB. Replaced MAF. Would not communicate with any scanner so... Replaced ECM. Now able to communicate. No codes and nothing unusual in datastream. Changed fuel filter to give me something to do while I was thinking about what the ...
2002 Saturn L100 2.2L Hesitation VIN: 1G8JS54F22
i'm back after few ez reprs. but i'm here screaming for a help,i notice after ez ones hardones show up . but its ok thats what it keeping sharp . this saturn l100 came w/misfire no power on accl. retrieve codes po300 - u got it ramdom misfire follow flowchart ...

Fixes & Summaries for GM
Fix/Summary Answers
1999 Cadillac Catera 3.0L No Start VIN: W06VR52R2X
After Looking at all angles,I sent it to dealer. I still think that there is a problem with ECM. I did unplug all 5 volt sensors,Checked grounds,ect. The ecm would not ground those 2 circuits. It has been a year since I sent a vehicle away with no answer,and i...
1998 Chevrolet K3500 Cheyenne 6.5L engine VIN: 1GCHK33FOW
thanks everyone for the ideas but it turns out this motor has no woodruf key on anything crank driven. none on the cam lower gear,crank sensor or balancer. we installed some keys and got it started but now runs poorly. has one dead hole so we can proceed form ...
2000 Chevrolet Suburban 1500 LT 5.3L Stall VIN: 3GNEC16TXY
thanks for all the replies, we informed customer to get computer reflashed first and then we would test wiring and the iac. customer has not returned
1997 GMC Jimmy SL 4.3L transfer case VIN: 1GKDT13W5V
most everybody suggested tire size or ratio problem. the vehicle has the same brand tire, size, but not make. the style of tire had a p instead of an s. also i was measuring the tire incorrectly. i measured diameter instead of circumference. the front tires we...
1995 Oldsmobile 98 Regency Elite 3.8L starter/ignition VIN: 1G3CX52K9S
Hi, this Olds seems to be fixed. The customer originally had a no start problem which I found was a loose connection at the starter. What had originally gave me the trouble was that the customer had given me a key that she had made in a hardware store. When sh...
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