Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 3, 2010
International Automotive Technicians' Network (iATN) - Members Only
Next
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Open Help Requests for GM
Help Request Answers
2004 Buick LeSabre Custom 3.8L Surge, MIL Lamp on VIN: 1G4HP52K94
Hoping someone is familiar with these symptoms. Customer had vehicle towed in for cranks, no start. Vehicle started fine and had only a trans shift timing code. The next day, after starting, at idle, the vehicle intermittently and simultainiously will momentar... Trouble codes: P1811
View
1998 Cadillac Seville SLS 4.6L valve covers VIN: 1G6KS54Y8W
Ilooked for oil leak and found that valve cover gaskets were leaking.Ihave never done them on cadillac before i have followed the alldata procedure and can not get the left valve cover off. Ieven dropped the front cradle down that seemed to get alittle more ro...
View
2004 Cadillac Escalade ESV 6.0L ipc/brakebooster VIN: 3GYFK66N74
ladies and gents would really appreciate some help on this one.caddy came in with message in cluster saying service power brake booster however there is no power brake booster.read codes and found yaw sensor too be bad .replaced and cleared codes but still ser...
View
2005 Cadillac DeVille 4.6L automatic level control VIN: 1G6KD54YO5
Hello all, This Deville came in with the rear end high in the air. I tried to get in to access codes but my Genisys won't let me. I've checked the level sensor rod underneath and it's in place. When I turn on the key the pump runs raising it higher. I'm flying...
View
1991 Chevrolet Corvette 5.7L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: 1G1YY3388M
hello again for those who responded a week ago yes this is the same car but different problem ok i have got a code 13 o2 sensor replaced sensor road test bout 10 min of driving the service engine lite comes on same code 13 i have determined that the ecm is not... Trouble codes: 13 (o2 sensor open sort or bad)
View
1996 Chevrolet Blazer 4.3L distributor cap VIN: 1GNDT13W2T
I have a 1996 S blazer with a 4.3l W engine. This vehicle has had a CPI unit, intake gaskets, spark plugs, plug wires, and cap and rotor replaced for standard problems over the last 6-8 months. In the last two weeks it has begun a very slight and random misfir...
View
1996 Chevrolet K2500 Suburban LT 7.4L No Start VIN: 3GNGK26J2T
Thanks for any ideas in advace. truck came in for a missfire/ sputtering. when i went to start is it had a 15-20 sec crank time before starting. After started i verified missfiring, tranced to #6 cylinder missing. found fuel injector harness shorting to ground...
View
1997 Chevrolet C2500 5.7L brake lights VIN: 1GBGC24R4V
NEED HELP FINDING A BATTERY DRAIN. TRACED IT TO THE BRAKE LIGHT FUSE UNDER THE DASH OR BATTERY FUSE IN FUSE BLOCK UNDER THE HOOD. DRAW GOES AWAY WHEN THE INGNITION IS TURNED ON OR TO ACC. BUT COMES BACK AS SOON AS YOU TURN THE KEY OFF. HAVE DISCONECTED WIREING...
View
1998 Chevrolet Astro LT 4.3L Rear Brakes VIN: 1GCDM19W6W
Truck came in with blown brake lines.Replaced lines from master to abs unit and from abs unit to rear of vehicle.We can't get any fluid to come out of rear wheel cylinders.We have automated bled the system.Tried to vacuum bleed the rear wheel cylinders but it ...
View
1999 Chevrolet C1500 Suburban 5.7L starters VIN: 3GNFK16R6X
first i would to say to everyone who offers help in this matter thank you this chevy has had 3 startes replaced 1 by us 2 else where they last about 1 week then they start grinding bucking back flywheel looks good has new crank sensor did relearn on it new bat...
View
1999 Chevrolet Tahoe 5.7L Other VIN: 1GNEK13R5X
helo ive got a real headbanger hear a 99 chevy taho 5.7 we pute a new motor in this thing my machanic firedit right up ran great but the thormostat was stuck got a little hot about 210 shut it down let it cool over night started right up next morning now has a...
View
2000 Chevrolet Silverado 2500 6.0L shifting out of OD VIN: 1GCGK29U4Y
Hi Guys, This truck will come out of overdrive intermitenly, and will not shift back into overdrive until you shut off the key and restart thr truck. The owner says it has been doing it for a couple of months. I scaned it and the only code is a P0300 random mi... Trouble codes: P0300 (Random Misfire)
View
2003 Chevrolet Impala 3.4L paskey VIN: 2G1WF52E73
hi all first of all there is no codes in any module and i have a tech2 car has intermittent no start tracked it to ing.key cylinder replaced key and cylinder and attempted to do 30 minute relearn lite flashes in first phase then goes out(about10 minutes) shu...
View
2006 Chevrolet Malibu LS 2.2L MIL Lamp on VIN: 1G1ZS51F06
This car has a SES light on with the two codes listed above. I have been on the phone with GM TAC. I reflashed ECM. I have put two stats in and flushed system twice. TAC is saying they have numerous problems with poor coolant flow due to restricted heater core... Trouble codes: P0128 (Temperature below threshold), P2119 (Closed throttle position performance)
View
1999 GMC Yukon Denali 5.7L No Start VIN: 1GKEK13R1X
Vehicle would not start. Had low fuel pressure. Pinched off return line and fuel pressure went to 70psi. Put new fuel pressure regulator and same, 45psi. Pinched return line no change in fuel pressure. Remove return line at fitting and no fuel returns to tank....
View
2002 GMC Sierra 1500 5.3L ipc VIN: 2GTEK19TOY
We have a truck with a dash that drops out intermitntly, the battery light comes on the air bag comes on and flashes, the speedometer drops to 0, the tach drops to 0. I checked powers and grounds to the IPC, all checked good when the dash was acting up. We fou...
View
2004 GMC Yukon Denali 6.0L abs VIN: 3GKEK63U74
Vehicle came in with complaint of "Trac off light" would come on, Stability Control would be displayed, then would enter into Reduced Engine Power Mode. Has only done this a few times over last couple of months. He would shut it off, then on next re-start all ...
View
2005 GMC Sierra 1500 SLE 5.3L n/a VIN: 2GTEK13T15
Customer states that while driving down road, he adjusts the heat setting to a lower setting (midway) and after a bit it will go to full cold on it's own. Also in summer time he say's that it will start to blow heat while the A/C is on. This is a manual HVAC u...
View
2006 GMC Sierra 2500 HD SL 6.0L steering box,linkage VIN: 1GTHK24U36
This 2006 GMC 2500HD 4X4 has a problem that feels like what I would call memory steer.If you are driving straight down a road and let go of the steering wheel the truck will go straight but if the steering wheel is turned a little to the left and you let go of...
View
1993 Oldsmobile Achieva S 2.3L Misfire, RUNS REAL ROUGH VIN: 1G3NL1436P
hey guys i have a 93 achiva that runs extreamly rough on start up only cold. it runs bad for about 20 seconds or untill you give it throttle then runs fine,to duplicate the problem it has to sit for at least 6 hrs. another shop replaced all the ignition parts ...
View

Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick Riviera 3.8L Misfire, MIL Lamp on VIN: 1GW4GB17S7
i had to run the car for a while with a insight scope check all the sensors got to the coils and the one in the middle was still a oem, other one had been replace every once in awhile is just did not fire on the 2nd coil replace runs whole lot better,run a bac...
22
2003 Cadillac CTS 3.2L pcv VIN: 1G6DM57N83
I contacted local dealership they told me to blow out pcv system and let dry over night vehicle has not come back with problem. Thanks to everyone that replied.
3
1962 Chevrolet C10 Pickup 5.4L low geared VIN: 2C154L1235
I did not post this help request and have notified iatn of the error in their email system, Sorry to all the techs who sent me an email helping out with this request. Either way It still goes to show what a great community that has been created to help us in o...
29
1989 Chevrolet Corsica 2.0L Hesitation, Surge, Cuts out VIN: 1G1LT5413K
I have drove and drove this vehicle for the chug complaint and it turns out its the downshifting of the vehicle at WOT that the customer was talking about this time!! WOW well its out the door! Thanks for all the help on this!!
33
2002 Chevrolet Trailblazer LS 4.2L Power steering VIN: 1GNDT13S42
So it took so long to get back to you guys my computer crashed. Thank all of you for all of your help. I put a new power steering rack in it and the power steering felt like new. It took care of the turning problem and the customer was pleased that we fixed it...
30
2002 Chevrolet Malibu LS 3.1L parking lamps VIN: 1G1NE52J52
Thanks for all the replies, ended up finding short internally in the underhood power distribution box. Filled up with salt and sand from our lovely roadways here in new york. Was not able to disassemble box to clean it out (which was probably all it needed)So ...
6
2006 Chevrolet Trailblazer LS 4.2L power windows,radio,a/c controller,door locks, VIN: 1GNDS13S36
the vehicle had a bad bcm thanks to everyone for all of your help.
15
2006 Chevrolet Silverado 3500 WT 6.6L cruise, pto idle up VIN: 1GBJK39D46
ok guys here is what we finaly found after getting this company to return the truck to us long enough to look at it again. We found an open in the circut that we had missed from the brake switch to the pcm. Some food for thought also that we didnt notice when ...
3
1997 GMC K2500 Sierra SL 5.7L MIL Lamp on VIN: 1GTGK24R4V
THANKS TO EVERYONE. FOUND THE PINK POWER WIRE OVER THE TRANSFER CASE SHORTING TO GROUND. THE WIRE LOOM WAS OLD AND HAD BROKEN OFF ON TOP EVEN THOUGH IT WAS STILL CLIPPED IN WHERE IT WAS SUPPOSED TO BE IT RUBBED ON THE FRONT SHAFT AND WORE A HOLE IN IT. ONLY BL... Trouble codes: P0102 (mass air flow), P0340.
4
2007 Saturn Ion-2 2.2L Reduced power mode VIN: 1G8AJ55FX7
I wanted to make sure this thing was fixed and gave it a few weeks. I called the lady this morning and it is still ok so far. I did make a mistake above when I typed in the normal sweep range of the APP1 sensor, it should be 1 volt released and 4.5 volts wide ... Trouble codes: P2138 (APP 1-2 correlation).
4
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next