Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 14, 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
1997 Buick Regal LS 3.8L Cuts out, Misfire VIN: 2G4WB52K0V
Someone tell me what we're missing...Please! This car has been here way to long and I don't have enough hair to be pulling it out. This vehicle will misfire and pop back into the intake, also it will jerk pretty going down the freeway. One of me technicians lo...
View
2003 Cadillac CTS 3.2L oil pressure VIN: 1G6DM57N73
Vehicle died on highway for customer when message came up low oil pressre. Tow company added over 3 quarts of oil. Car started up and the customer brought it in for service thinking he only had a major oil leak problem. Valve cover gaskets leaking badly so i p...
View
1994 Chevrolet C3500 5.7L temp guage VIN: 1GBGC24K4R
this truck reads normal 195 to 210 degrees when key is on but then goes up to 235 degrees when you shut the key off. I'm looking for advice on where to start with this, hopefully someone has seen this problem. this is a one wire sensor to a guage. Thanks for a...
View
1997 Chevrolet C1500 5.0L Misfire VIN: 2GCEC19M4V
This vehicle came in not running. The guy parked it because it ran bad. It's been sitting a couple of years, the plate expired in '08. Started with fuel pump & filter. Gas was varnished and emptied it out. I put in 6 gallons of Chevron 87 grade. Truck started ... Trouble codes: P0300 (Misfire detected)
View
2000 Chevrolet Astro 4.3L Cuts out, MIL Lamp on VIN: 1GMDM19W3Y
Gentlemen, This vehicle has a miss when driving with no load or if you rev it up while sittingbut if you brake torque it does not miss at all, missfire is the worst on 3 and 4 but also on 1 2 & 5, wires cap and rotor, coil new. Had a problem with no power befo... Trouble codes: P0300
View
2000 Chevrolet Cavalier Z24 2.4L starter VIN: 3G1JF12T3Y
Hi, One of my students is working on his Cavalier. He was having problems with the starter staying engaged so he replaced it with a rebuilt. When he connects the battery terminals the starter runs without turning the key. We checked for voltage at the trigger ...
View
2001 Chevrolet Impala 3.4L Unknown VIN: 2G1WF52E81
Hey guys, i have a 01 chevy impala 3.4 with a 4t65e tranny. it came in with the complain that the further their foot is on the gas the slower it goes. drove the car and felt like the converter was slipping. i would gas it at any speed and the car seemed to sto...
View
2003 Chevrolet Silverado 2500 HD 6.6L key fob, front seat heater VIN: 1GCHK29113
hi guys thanks in advance for the help, pretty sure we know whats going on but would like confirmation if anybody has run into this. vehicle first came in with all components in passenger front door inop, including both front seat heaters and door fob inop. wa...
View
2004 Chevrolet Silverado 1500 5.3L temp control VIN: 2GCEC13T84
reflashed hvac module,customer stated the a/c will blow hot-warm air out of drivers side intermitenly,no codes set and unable to duplicate,a/c charge is on the money any tips or suggestions would be great,thanks
View
2006 Chevrolet C7500 Kodiak C7C042 7.2L No Start, Poor Idle Quality, Surge, Cuts out, Stall, Misfire VIN: 1GBM8C1C56
This truck is loosing power & stalling on the road. It will usually restart and return to the yard on it's own. A pressure gauge on the port by the fuel filter shows max pressure of 70 PSI when it runs good, but sometimes 30PSI or less; this is when we have th...
View
2005 GMC Sierra 1500 5.3L starting system VIN: 1GTEK19T55
Hello folks got one here GMC Sierra hybrid,customer sent the truck on hook saying he lost the brakes while driving,now my problem is I cant get it started,I called the customer and he said did'nt have any issue about starting the vehicle.I hooked up my Snappy ...
View
2001 Oldsmobile Aurora 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G3GR62H41
Vehicle came in with complaint of rough idle, smooth under all other conditions. We verified complaint, no misfires (a few random ones on cyl #1, very spotty) on scanner at off idle or while driving, but once rpm drops to below approx 1000 constant misfire sta...
View
2000 Pontiac Grand Prix SE 3.1L Surge, Cuts out VIN: 1G2WJ52J4Y
no pending, or stored codes. heavy surge/cuts out @2200-2500 rpm steady throttle. symptom will cease when throttle is opened (rpm/load increased) scope traced tps signal (good, no glitches) monitored crankshaft position sensor (good, no glitches) symptom does ...
View
2001 Saturn SL1 1.9L Cylinder head bolt torque VIN: 1G8ZH52891
Need help or advice with this 2001 saturn SL1 with a 1.9L sohc. I am replacing the cylinder head gasket and ready to install original cylinder head with new head bolts. never done one on this vehicle and want to make sure im 100% correct. Using all data for to...
View

Fixes & Summaries for GM
Fix/Summary Answers
1997 Chevrolet Blazer LT 4.3L Cuts out VIN: 1GNDT13W3V
Thanks to all who took the time to reply. The fix ended up being a new ignition module. After tugging on the connector to the module we were able to duplicate the stalling. Neither MAP sensor code returned. Thanks again, Steve [...] Trouble codes: P1106, P0108.
14
2000 Chevrolet Silverado 1500 5.3L Vibration upon braking VIN: 2GCEC19T9Y
Out of 62 responses, only 2 (Bill [...]) recommended rechecking the tires. After balancing all 4 tires/wheels, the vibration-while-braking problem is completely resolved. The customer has now admitted that he had 2 of his tires dismounted for...
63
2003 Chevrolet Silverado 1500 4.3L Starting VIN: 1GCEC14X93
Thank you for all the help. I am sorry for taking so long to get back. This vehicle appears to have been exposed to a voltage spike. I replaced the BCM and was able to communicate but then I lost communication with the PCM. I then went through everything ag...
11
2003 Chevrolet Tahoe LS 5.3L limp-in mode VIN: 2GCEK19T13
GOT 17 REPLIES TO THIS-TRUCK STILL HAS NOT ACTED UP AGAIN.I DID CLEAN THROTTLE BODY AS DEAN FROM CALIF. SUGGESTED,HE ALSO SUGGESTED LOOKING INTO TSB 1869994 WHICH ADDRESSES WIRING ISSUES AT THE T/B CONNECTOR/AND BREAKING WIRES A FEW INCHES FROM CONNECTOR.ANOTH... Trouble codes: P0220.
17
2003 Chevrolet S10 2.2L No Start VIN: 1GCCS14H73
Hello Every Tech. First of all, I will like thank you every one offer the info and advice. The problem I found was the left rear chasis ground wasn't getting good ground, I decide to make another from connector through the engine block area to get better groun...
18
2008 Chevrolet Silverado 1500 LT 5.3L cruise control VIN: 3GCEK133X8
hello all this one is fixed and i got some good info that should help a lot of people. first of all deke and lewis were correct it was the brake switch (not much info for this vehicle yet even the dealer said the cc switch was bad.the big question was if the ...
6
2004 GMC Sierra 3500 6.6L No Start, MIL Lamp on VIN: 1GTHK33214
WE TESTED THE COMMUNICATION WIRES BETWEEN THE COMPUTERS AND THEY TESTED OUT OK. HAD ANOTHER DURAMAX IN THE SHOP SO WE SWAPPED THE MODULES OUT AND THE TRUCK FIRED UP INSTANTLY. GOT A USED MODULE AND TRUCK RUNS AWESOME. NO COMMUNICATION CODES HAVE COME BACK. Trouble codes: P0335, U0105 (lost communication fuel injector control module), U0106 (lost communication glow plug module).
4
1996 Oldsmobile Cutlass Ciera 3.1L Locks, Radio, Interior Lights VIN: 1G3AJ85M2T
Sorry to say that most replies kept listing what I already said didn't exist. There is no relay behind the dash. I had the ENTIRE dash out of the vehicle. What I eventually did was to re-think the system minus a relay. The actual controller for the keyless...
5
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next