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Prev Professional Automotive Repair Technical Discussions for January 20, 2005
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Open Help Requests for GM
Help Request Answers
1999 Buick Regal LS 3.8L service engine soon and airbag lights on VIN: 2G4WB52K5X
Hi guys, the "service vehicle soon" lamp is staying on and the airbag light stays on. Cleared airbag B1001 code; airbag light goes off but SVS lamp stays on. Is there anything else contributing to this? There are no engine/powertrain codes, but there is a B100...
1996 Cadillac Fleetwood 5.7L abs.traction control VIN: 1G6DW52P4T
Hello friends and Happy New Year to all.We have a 96 fleetwood brougham,rwd cadillac that appears to be setting a code 27 left front speed sensor circuit malfunction.we performed all testing in alldata for the wheel speed sensor on the l side.According to alld...
1999 Cadillac DeVille 4.6L Anti Theft VIN: 1G6KD54Y7X
Need Help Car came in running but when you shut it down the info tells you to remove key and wait 3 min.then will restart shows code 1632 any info will be help full
1999 Cadillac Seville STS 4.6L abs & traction control VIN: 1G6KY5499X
After completing a brake job on this vehicle the amber ABS and TRACTION lights came on along with: SERVICE STEERING SYSTEM and SERVICE STABILIZER SYSTEM in the message center. The only other thing disconnected beside the pad sensors were the rear speed sensors...
1988 Chevrolet Van G10 4.3L lock bolt, spider gear shaft
I had a customer come in with a seized LR brake. Upon inspection he needs complete rear brakes and a LR e-brake cable. It has a leaking RR axel seal on a 10 bolt diff. So I pulled the diff cover and took out the lock bolt that holds in the spider gear shaft an...
1993 Chevrolet Cavalier RS 2.2L door locks and defrost switch VIN: 1G1JL5444P
when applying the door lock switches on either side of car the relay just clicks, also when shifting to reverse or drive the relay clicks but locks dont operate in open or close. The drivers door lock opens but not smoothly the passenger side is very smooth. M...
1995 Chevrolet Blazer 4.3L Transmission VIN: 1GNDT13W3S
When starting out after first started the transmission goes through all gears normally - after coming to stop transmission starts out in third gear - it does not shift down from 3rd to 2nd. Customers complait is no power somtimes when fist starting out. The co...
1996 Chevrolet Blazer 4.3L Hesitation VIN: 1GNDT13W2T
Vehicel came in from another shope,no start . we fixed no start with crank sensor. tech say timeing is right,start fine but when test driveing bogs down when excellorate. Trouble codes: N0N
1998 Chevrolet Blazer 4.3L Flaky guage VIN: 1GNDT13W9W
Checking to see if anyone has run into this problem recently. I have a blazer that I have just replaced the fuel pump on and the fuel guage intermittently showing fuel, then empty and bounces back and forth. I am not coming up with any type of code while readi...
2000 Chevrolet Blazer LS 4.3L Bellhousing Bolt VIN: 1GNDT13W0Y
Trying to pull the engine on this S10 Blazer 4X4. How do I gain access to the bellhousing bolt at the drivers' feet? In the past on several GM's I'll wail on the spot with a bar & hammer to gain clearance, but in this case the angle & restricted area are prohi...
2001 Chevrolet Silverado 1500 5.3L air box VIN: 2GCEK19T81
we have a 2001 k1500 with cold air entering the cab above heater box and keeping the passenger side colder than the drivers side we have check all the gaskets and air intake for leaks and have found nothing. heater and a/c controls all work well. is there a bo...
2001 Chevrolet Tahoe 5.3L Misfire, MIL Lamp on VIN: 1GNEK13Z82
hello gm tech's i had my friends 01 5.3 tahoe in last week and it had p0300 and idled rough looked at misfire data and only injectors that were ok were 3&8 the others had misfires inthe thousands///i cleaned the injececters with the fuel rail looped//with bg c... Trouble codes: P0300
2001 Chevrolet Silverado 3500 6.6L Starting VIN: 1GBJK34151
I jumped in the truck monday morning(5 Degrees outside), waited for the "wait to start" light to go out and it fired right up. It ran for about 20 seconds and died. It will not restart. I figured gelled fuel so we towed it inside. After sitting for 6 hours and...
2001 Chevrolet Silverado 3500 6.6L low coolant light when hot, long warm up time VIN: 1GBJK33141
I think I'm getting turbo pressure in my coolant system, is this possible? Low water light come on & blows a lot of air bubbles into overflow tank, but coolant level is OK. Vehicle has never overheated. Warm up time is slow since the problem started. Engine wa...
1994 GMC K2500 Suburban SLE 7.4L fail safe harsh shift&code 86 wont go away VIN: 1GKGK26N2R
hi every one we are banging our head against the wall. we rebuilt the transmission 4l80e late style. replaced all solenoids ect. after we were done installing the transmission we tested for dtc's and found code 86. erased then drove again and it came back. so ...
2001 GMC Yukon SLE 5.3L hvac controller VIN: 1GKEK13T31
when operating this trucks heater controls, the controller lights will just flash. if you have it on the vent setting, everything will operate (recirc, a/c request button, fresh air intake will all light up and doors will actually move) as soon as the mode set...
2002 GMC Sierra 2500 HD 6.0L front axle VIN: 1GTHK24U72
replacing front axle seals on this unit, the circlip that holds axle has flat edge on it so clip wont colapse when axle removed, has anyone found any tricks to remove these easyly. thanks in advance
1995 Oldsmobile Cutlass Ciera 3.1L Surge VIN: 1G3AJ55M6S
Have this vehicle that periodically the gas pedal will stick while driving the vehicle. No floor mats in the vehicle that obstruct the pedal. Have lubricated the throttle cable and checked for any slack. Cable is in good condition.
1997 Oldsmobile Silhouette 3.4L rack and pinion. VIN: 1GHDX06EXV
Hello fellow Techs.I'm asking for input or diagnostic advice for an ongoing problem.Long story but will try to be brief.The front end shudders( severly at times rattles dash)when turning steering wheel at low speeds or when parked.Also steering binds the last ...
1998 Other GM Corsa B 1000CC preformance VIN: WOLOSBF08W
Vauxhall Corsa B (European model) 1998 model. 1000cc [...] model. Engine number. X10XE Chassis [...] Dear friends, It is great to be able to write to you guy's out there again. Homwever, I have a problem with a Corsa B, & I am wondering...
1978 Pontiac Firebird Trans Am 6.6L door loks VIN: 2W87Z8L151
need location of power door lock relay,and where i can get a wiring diagram.thanks in advance
1997 Pontiac Grand Am SE 3.1L Poor Idle Quality, Hesitation, Surge, Misfire VIN: 1G2NE52M0V
this car came as a no start, found ignition module unpluged, plugged in module still no start, scaned computer found codes, p1350 and p0101, cleared codes car started immediately, but ran poor, after started did brake torque, and then got random missfire codes...
2001 Pontiac Grand Prix GT 3.8L wipers VIN: 1G2WP12K01
This seems to be my week for problem cars.I have this 2001 Pontaic GP. Customer came in with the wipers not parking We ran threw diagnostics and came up with a bad delay board We replaced the board and now the wipers will park but if you put the wipers in dela...

Fixes & Summaries for GM
Fix/Summary Answers
1993 Buick Regal 3.1L Excessive Emissions VIN: 2G4WB54T1P
Hello, Thanks again to everyone that replied and tried to help. We found the park/neutral switch connector was corroded and telling the computer the transmission was always in gear. Replaced the switch and connector, performed an idle relearn with the tech2 an... Trouble codes: 32 (EGR Malfunction).
1995 Cadillac Seville SLS 4.6L Transaxle Speed Sensor Circuit Problem VIN: 1G6KS52Y1S
Thank You!!! The Caddy is FIXED!!! The customer was undedided for a while and didn't know if he wanted to put that kind of money into the vehicle or not but he finally dedided to go ahead with the repairs. Special thanks to Theodore from California and Michael...
1989 Chevrolet C1500 Cheyenne 4.3L clutch pedal VIN: 1GTDC14Z1K
I know this is going to be against everything we preach and alot of you guys too, but we went with an aftermarket slave cylinder and the darn thing was fixed. I know you're thinking it was in the bleed procedure, but we used the same procedure and no problems ...
1996 Chevrolet Express 3500 5.7L No Start VIN: 1GCGG35K9T
Well this one turned out to be something I would have not expected. I kept chasing power and ground circuits that were constantly changing on me. We had another identical van come in and I decided to swap ECMs. Van started right up so we got a new ECM installe...
1996 Chevrolet Beretta 3.1L valves VIN: 1G1LV15MXT
reassembled the valve cover first thing this morning, squirted some atf in lifter valley as recommended by my manager before reassembly. tried cranking right away sounded like it had some compression now, so i put a hose on the exhaust and tried to start, had ...
1989 GMC K1500 Sierra SLE 5.7L No Start VIN: 1GTDK14K6K
Thanks again guys, I replaced the distributor shaft with a new oem part and took note that the reluctor magnet on the new shaft was much stronger than the original. The truck no longer starts hard and I am confident the no start condition is history. Once agai...
1993 Oldsmobile Cutlass Supreme S 3.4L Timing Belt VIN: 1G3WT34X7P
Sorry I'm late at posting a fix. The truth is the car is still here. While I'm confident that the advice given to me is indeed a fix, I will never know. All the replies I received were nearly the same. I believe pulleys and a tensioner would have fixed the pro...
2001 Oldsmobile Intrigue GX 3.5L MIL Lamp on VIN: 1G3WH52H81
hey all sorry it took so long for this fix. We installed another new air pump. Along with further investigation I found that all the rplys were dead on. The check valve nearist the a/p was stuck open causing exhaust & water to be pushed back into the a/p aga... Trouble codes: P0410.
2003 Oldsmobile Alero GL 2.2L Starting VIN: 1G3NL52E33
Once again IATN members come through!! I posted my request for info on the GM Passlock system after I left work and when I got to work the next day the information I needed to get the customer back in their vehicle was waiting for me. What a resource we have. ...
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