Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 18, 2013
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
2001 Buick LeSabre Custom 3.8L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire VIN: 1G4HP54K21
Orginal complaint was customer's daughter was driving car while her's was in the shop. Stalled on her once, but immediately restarted. Father was driving car back from daughter's house and engine stalled. Restarted immediately, then died again in his driveway.... Trouble codes: 1374 (Cam/Crank correlation)
View
2006 Cadillac CTS 3.6L Theft light VIN: 1G6DP57746
Hi guys i got this 06 cts that i need help, the vehicle runs good the problem is that the ignition key does no let you take the key off, and it has trac light, and security light on.. Has u1300 and p1629 present at all times if i erase code it throws right awa... Trouble codes: U1300 (Class 2 voltage high), P1629 (Theft fuel enable)
View
2007 Cadillac SRX 3.6L MIL Lamp on, Low power mode VIN: 1GYEE63757
Very good customer called while on a long weekend trip. Vehilcle would slow to 20 MPH, Check Engine Light would come on, LOW POWER MODE message. I advised him to turn off the Ignition, give it a minute to relearn, then proceed to his destination, and back home... Trouble codes: 2138
View
2000 Chevrolet Blazer LS 4.3L transfer case VIN: 1GNDT13W1Y
Have replaced dash switch no change,checked wireing checked encoder motor per instructions in archives just barely feed 12 volts to motor and just barely or you will ruin the encoder motor then change polarity and return to original position and it worked.I ha...
View
2002 Chevrolet Trailblazer LS 4.2L 4x4 VIN: 1GNDT13S22
It came in for some simple repairs and now it don't want to leave.I replaced the left front axle ,pulled plugs,and replaced t-stat. The owner says 4x4 inop now.The battery die so i put a charge on it maybe the tccm got messed up.If codes are cleared the c0550 ...
View
2006 Chevrolet Cobalt LT 2.2L Engine Vibration VIN: 1G1AL15F16
Hi All This vehicle vibrates the entire car at idle. worse in gear. Found the right side engine mount was sagging and replacement did not correct the issue. Pulled the timing cover and checked the timing chains. the balance shaft chain was off so corrected it...
View
2007 Chevrolet Trailblazer LT 4.2L Differential VIN: 1GNDT13SX7
Code CO327 continues to come on i have 5 volts on gray wire by encoder motor but 4.4 volts on brown and white no matter what position i put switch in and no lights come on in the switch Fluid looks nice and clean I checked connections on TCCM module look good ...
View
2004 GMC Canyon SLE 3.5L MIL Lamp on VIN: 1GTDT19644
I have a Canyon here with a long term fuel trim issue(p0171),long term trim sits @ 19-22 @idle,code only sets at idle,front o2 very active,rear o2 steady,fuel pressure 57psi,no vacuum leaks found(smoked twice),ect about 180,need a little help please. Thanks i...
View

Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Astro 4.3L Misfire VIN: 1GNDM19W7Y
Thank you to all of you that have replied to our problem. We found that the crank sensor was broken into a couple pieces when we were checking it so we replaced it and cleared the codes and it has not returned so we are calling this one fixed. Sorry about the ... Trouble codes: P0300 (engine misfire), P300.
23
2001 Chevrolet Blazer LS 4.3L Hesitation, Surge, MIL Lamp on VIN: 1GNCT18W81
Sorry about the long post. We recommeded too replace distributor, found gears were worn, igntion coil, and cpi unit. Customer declined repairs at this time. Customer says well bring the vehicle back when he has the funds. I will post any fixes in the future! T... Trouble codes: P0300 (Random Misfire).
29
2005 Chevrolet Malibu 2.2L upshifts VIN: 1G1ZS52F15
P0826 was cure by repairing a broken wire in the console. The shift problems were cured by replacing the ECM with a junkyard unit. The melted 1-2 solenoid had damaged the driver in the ECM. I tested the solenoid circuits with the side cover off the transaxle, ...
1
2010 Chevrolet Express 3500 6.0L front of engine VIN: 1GC2GTBG1A
Thanks for all the help on this one. It turned out to be a bad lifter at the front of the engine. We ended up replaceing the camshaft, all 16 lifters,cam gear and bolt. No more noise and the customer is happy.
7
1999 GMC K1500 Suburban SLE 5.7L No Start, Stall VIN: 1GKFK16R3X
THANKS FOR ALL THE REPLIES,WE ENDED UP RUNNING A NEW GROUND WIRE FROM PUMP HARNESS TO BATTERY GROUND,HAVE DRIVEN CAR SEVERAL TIMES APPEARS O.K. WE SHOULD HAVE RUN THE SECOND PUMP WE INSTALLED WITH JUMPER LEADS BUT,AFTER IT DIDNT WORK WITH FIRST PUMP (NEW DEFEC...
39
2002 GMC Sierra 1500 SL 5.3L Misfire VIN: 1GTEK19T52
Thanks for all the replies...the issue did end up being internal to the transmission and ended up putting a re-man in the truck..once again thanks for all the replies and suggestions...
10
2003 Hummer H2 6.0L instrument cluster VIN: 6GRGN23U73
thanks for all replies.cked all conections and power and ground supplies.all the sympthoms lead to faulty instrument.removed and shipped to BBA remanufacturing.(it will come ready and to plug in)from this co no need for programing.the repair charge is 120.00 p...
15
1970 Pontiac GTO 5.7L R7R cluster VIN: 242370P236
the inst. cluster does come out the back of the dash requiring complete dash removal. Recieved times from 4 hours to 7 hours and one suggestion to charge shop time. tech has not yet reinstalled but it looks like 7 hours is going to be close and maybe a little ...
8
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next