Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 15, 2008
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
1994 Buick Park Avenue 3.8L No Start, Stall VIN: 1G4CW52L1R
VERY long story made short: Long time good customer flatbed towed to shop six months ago because car died while driving. No other symptoms reported. Car started immediately at shop and nothing obvious found. Customer takes car back. Three months ago car died a...
View
1994 Buick Park Avenue 3.8L No Start, Cuts out, Stall VIN: 1G4CW52L6R
What can cause a cam sensor failure this quick?If I unplug cam sensor vehicle runs fine.Plug it in and vehicle will run for 1 minute and quit.Over and over.I plan on replacing sensor again,what else should I look for? Trouble codes: 341 (intermittent signal cam sensor), 341 (intermittent signal cam sensor), 342 (cam sensor failure)
View
2001 Buick Century Custom 3.1L MIL Lamp on VIN: 264WY55J71
thanks for checking this one out! car originally came in with no power and we found catalytic convertor to be clogged causing problem. coolant temp sensor was also faulty which is probably what led to convertor damage. we installed a Walker direct fit converto...
View
2001 Buick Regal LS 3.8L temp in car VIN: 2G4WB55K71
it happen when she drive awhile, like down the interstate, and some time at 50 mph to. thank wait here of any ideas.
View
2006 Buick Rendezvous CXL 3.5L Controls VIN: 1DONTKNOWI
My problem child is this 2006 rendezvous with dual zone a/c controls.The problem is that when you drive the pasanger side will default to dead hot.The problem is intermittant and has only happened to me once in over 10 test drives.Dealer has look (yeah right) ...
View
2002 Cadillac DeVille 4.6L battery VIN: 1G6KD54Y42
Happy New Year!!! This car has had a phantom current draw for years, and now we are tasked with finding the problem. My tech has allready spent countless hours monitoring currwnt draws, problem is, we can put her to sleep with acceptable draw numbers, only to...
View
1995 Chevrolet Astro 4.3L Poor Idle Quality, Hesitation, Surge, Stall
Hi, hope fully some one can help me out. I have been working on this customer van for the last few weeks. It is hard starting when it sits over night and the outside temp is cold. Customer would only get it started with staring fluid, other wise it just cranks...
View
1997 Chevrolet K1500 4.3L Hesitation, Misfire VIN: 1GCER14W7V
The truck came in with a complaint of Hesitation on freeway speeds only. The scanner pulled codes #P0172, Po175, and P0300. Most cylinders are randomly misfiring. Tune up was done around 3 months ago.Has a new catalytic converter and two (2) O2 sensors. The co... Trouble codes: P0172 (A/F ratio B1 too rich), P0175 (A/F ratio B2 too rich), P0300 (Random misfire)
View
1997 Chevrolet Blazer 4.3L Transfer Case / Front Diff VIN: 1GNDT13W6V
Hi all, The initial complaint with this vehicle was that the 4x4 was inop with a complaint of a previous grinding noise in the front. I road tested the vehicle, and ran it on the lift, the front diff would only engage ONCE, at first startup, and not engage af...
View
2002 Chevrolet Silverado 1500 4.3L not known VIN: 1GCEC14W62
OK Fellow Techs I'm at my witts end. Truck came in for the usual 4.3 problem intake leak coolant in the oil,and front timing seal leaking. Routine job have done several. hear is my problem. we finished the job and the tech started the truck up. right from the ...
View
2002 Chevrolet Trailblazer LT 4.2L Mechanical VIN: 1GNET16S82
hello gm techs, this trailblazer was towed to my shop with customer complaining of no oil pressure. we cranked vehicle to find the gauge reading around 55 psi cold. we hooked up a mechanical pressure gauge to verify factory gauge was accurate. mechanical gaug...
View
2004 Chevrolet W3500 Tiltmaster W3S042 4.8L controller VIN: J8BB4B1444
Hello everyone, The problem I am having a problem with this is that it won't relearn the TPS. It's a Chevy truck but is basically an Isuzu NPR. It came in with a code 21. We replaced the TPS and still got a code 21. After repeated attempts to clear the code a...
View
2004 Chevrolet Trailblazer LS 4.2L 2 Mon. not ready VIN: 1GNDT13S54
Hello, all. I have been trying to get the EVAP and Secondary AIR monitors to reset. The problem has been that the ambient temp. here has been 17-24 degrees every day this week, and the monitors require an air temp of at least 37 degrees. I have consistently ru...
View
1993 GMC K2500 Sierra 6.5L No Start, Stall VIN: 1GTGK29FOP
This truck originally came in for a blown head gasket. It ran and started fine other than bubbles in the cooling system. After replacing the right head and reassembling the engine, it was hard to start. On the initial start up, I attributed the excessive crank...
View
1998 GMC Yukon SLE 5.7L No Start, kick back VIN: 1GKEK13R9X
hello all, thanks in advance .well here goes this truck came in acting like it was hydo locking ,found injectors leaking down and it needed a tune up so thats where i started . then when cold i tried to start it and it kicked back once then fired up on the nex...
View
1996 Hummer H1 6.5L vss VIN: 137ZA8435T
installed duramax with alisson in unit new gauges in dash using autometer phantom 3 3/8 spedometer gauge and using the vss wire from the pcm the gauge does not work can this wire be used to operate this tach or do i need to directly to vss on t case if so wich...
View
1992 Oldsmobile 88 Royale 3.8L Excessive Emissions, Poor Idle Quality, Stall, Misfire VIN: 1G3HN53L6N
We have this 92 Olds 88 that came in for running poorly,we had a hard misfire at the start so we replaced the coil after verifying no spark at #6 , coil fixed the no spark at #6.In the process of changing the coil ,5 of the 6 bolts attaching the coil to the mo...
View
2001 Oldsmobile Bravada 4.3L Battery VIN: 1GHDT13W71
Ok, fellas this vehicle isn't driven often.It will go months without a problem and then out of the blue it will run the battery down every two days. We can't find anything on or any kind of a draw on the battery when we check. Hoping someone might be able to s...
View
2003 Oldsmobile Aurora 4.0L interior lighting VIN: 1G3GS64C03
Hey olds. guys. Here is one for you. The customer complaint is no interior lights. We found a 10A fuse blown for interior lights. After checking for obvious shorts, we replaced the fuse and sent the customer on there way. One week later the customer comes back...
View
2001 Pontiac Montana 3.4L high pitch whistle VIN: 1GMDX03E41
When driving this montana you hear a high pitch whistle. IT SEEMS TO BE RELATED TO THE INTAKE TRACK. I'VE CHECKED VACUMM LINES FITTINGS AIR FILTER. SO FAR IVE JUST HAVENT BEEN ABLE TO LOCATE THIS NOISE BECAUSE IT ONLY DOES IT WHILE DRIVING IT. THANKS FOR ANY H...
View
2004 Pontiac Grand Prix GT1 3.8L Cuts out, MIL Lamp on VIN: 2G2WP52214
HELLO, Gm techs. I have this grand prix gt no supercharger. Anyways, customer had grand prix towed into the shop as died on freeway and woud not retsart. Needless to say that when i got to vehicle the car started and ran well. retrieved codes from pcm and i go... Trouble codes: P1106 (maf ckt intermittently high)
View
2002 Saturn Vue 3.0L reading -7 on temp and reading 43 mph when stopped VIN: 5GZCZ63B92
02 saturn vue , auto trans slipping after rebuilt and replaced tcm, outside temp reads -7 (wrong) and speedometer reads 43 mph when at a dead stop
View
2002 Saturn Vue 3.0L Hesitation, Surge, MIL Lamp on VIN: 5GZCZ63B02
hi guys, i need help with this car, i checked any thing i could and do n't know what to do next except sanding it to dealer. please let me know if any body knows or have experance this problem on this car. thanks fred Trouble codes: P0128 (cooling t-stat below reguilating temp), P0171 (system too lean bank 1), P0174 (system too lean bank 2), P0300 (random misfire), P0302 (cylinder 2 misfire)
View

Fixes & Summaries for GM
Fix/Summary Answers
1990 Buick Century Custom 3.3L no injector trigger VIN: 1G4AH54N1L
Thank you to all who responded to my request for help on this no start. I put in a crank sensor, rebuilt computer and rebuilt injectors. I think it probably only needed the crank sensor and injectors. Any way its fixed and gone.
37
1992 Cadillac Seville 4.9L head bolt VIN: 1GGKS53B2N
WELL WE GAVE THE OWNER ALL THE INFO WE RECIEVED AND PRICES FOR NSTALLING TIME SERTS AND FOUND A USED ENGINE WITH 60K ON THE CLOCK AND HE DECIDED TO GO WITH THE USED ENGINE. THE GROUP WAS DEVIDED ON IF FIXING UP BLOCK WAS A GOOD IDEA OR NOT.I WOULD HAVE LIKED T...
15
2003 Chevrolet Silverado 3500 6.0L No Start, Cuts out, Stall VIN: 1GCJK33UX3
Well me let start by stating that it sure took too long for this closing.I ordered a GM ecm and it took over two weeks to get,along with holidays.This intermittent was a test of patience.I installed a test ecm from another truck and trouble never re-occured.No... Trouble codes: P0336 (crank sensor performance error).
6
2004 Chevrolet Silverado 1500 5.3L Mechanical VIN: 2GCEK19TX4
Thanks for all the very helpful info. This vehicle requires head removal to replace lifters so it is not possible to take a quick look at the lifters. Upon removing the lifters we found many chunks of sludge type material in the lifters and the galley. The ...
12
2004 Chevrolet Express 2500 4.8L starter VIN: 1GBHG31V14
WITH ALL THE TESTING WE PERFORMED WE FELT THAT THE P.C.M WAS THE PROBLEM. THESE HAVE AN 8YEAR/ 80,000 WARRANTY. TOOK IT TO A LOCAL DEALERSHIP. THEY ALSO THOUGHT IT WAS THE P.C.M THEY REPLACED THE PC.M. TO FIND THAT THE ISSUE WAS STILL THERE. THEY THEN DETERMIN...
16
1993 GMC K1500 Suburban SLE 5.7L Excessive Emissions, MIL Lamp on VIN: 1GKFK16K5P
THANKS TO ALL WHO REPONDED: AFTER GOING OVER EVERYTHING AGAIN AND AGAIN. PULLED INTAKE MANIFOLD AND REPLACE GASKETS WITH NEW FEL-PRO SET THEY HAVE AN EMBOSSED LIP AROUND EGR PORTS ON GASKET. LEFT NEW EGR VALVE ON RECHECKED EGR SOLENOID. HAVE PUT 40 MILES ON VE... Trouble codes: 32 (egr system failure).
11
2001 Oldsmobile Silhouette Premiere 3.4L radiator VIN: 1GHDX23E61
Looks like air in the system was the problem. Had to get vehicle to operating temp 5 times then let it cool, each time adding about a quart of coolant. Thanks to all that replied.
29
2003 Saturn Vue 2.2L MIL Lamp on VIN: 5GZCZ23D63
To start with nthanks to all who replied. I found all your input to be helpful and informing. This was a good one. It took me 5 weeks to find and repair vehicle working in my spare time. I ended up stripping out all engine harness and found a melted wire This ... Trouble codes: P0453 (fuel tank pressure high voltage), P0463 (fuel level sensor high voltage), P1635 (5 volt reference circuit 1).
6
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next