Join Now
International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for April 27, 2009
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 Chevrolet Corsica 2.2L No Start, Stall, MIL Lamp on VIN: 1G1LD5546R
Hi Folks, We've spent all day try to figure out why we are losing the 5 volt reference voltage to MAP and TPS. When we are wiggling the harness it will sometimes come up to 4.8 volts and the car will start and then stall when the voltage falls usually to zero.... Trouble codes: 34 (map sensor), 28 (quad driver)
View
1995 Chevrolet Blazer 4.3L Poor Idle Quality VIN: 1GNCT18W45
got this vehicle in smells rich, last one of these i got had a leak down of the inj spider harness. desided to run compretion test and found 80 psi on all cylinders give or take 5psi. this seam real low. just wanted to see what you experts think. stop and put ...
View
1995 Chevrolet K1500 5.7L Lack of power VIN: 1GCEK14K35
This truck was found to have no power to accelerate from a stop, almost like the brakes are on. The engine does not rev up and the trany doesn't slip. Also have found it doesn't stall when truck is running fine. I am leaning towards the transmission, the torqu...
View
1996 Chevrolet Blazer 4.3L Hesitation, Cuts out VIN: 1GNCT18W4T
Good customer, good thing! I haven't given up on this but I would like to! Breif history...Last fall, towed in, no fuel-replace pump and wire harness to pump, towed in again in January, removed 1+ gallons of water!(vehicle vandalized). We replaced pump, flushe... Trouble codes: P0131, P0151, P0155, P0420
View
1999 Chevrolet Cavalier 2.2L A/c vent temp at Idle VIN: 1G1JC5240X
I am trying to help out one of my broke college student customers on this one and get fixed as cheap as possible. The concern is as follows, Vehicle came in with a a/c not cold enough complaint. Furthermore temperature at Idle is much worse. I added a little f...
View
2000 Chevrolet Corvette 5.7L Electronic column lock VIN: 1G1YY32G8Y
This vehicle towed in won,t run more than 10 feet. Driver information center displays remove key/wait 10 seconds,service column lock. HAs had service bulletin #01-02-35-008 performed even though vehicle does not fall within the VIN break points. Called the dea...
View
2000 Chevrolet C2500 5.7L abs module, master cyl VIN: 1GCGC24R4Y
vehicle came to us with a low sinking-spongy pedal. we checked the front and rear brakes and the rear shoes were down. the rear cylinders were also seeping. we replaced the shoes and rear cylinders, and power bled the system. now the pedal is higher when first...
View
2000 Chevrolet Silverado 1500 4.3L Hesitation, Surge, Cuts out, MIL Lamp on VIN: 1GCEC14WXY
Ok. Here goes the story. One of our customers sons got a DUI under age about a year ago. His license was suspended and the truck sat til about a month ago. On the second day of driving, customer notices a loud knocking noise from the engine, so he had it towed... Trouble codes: P0131, P0151, P0171, P0174
View
2000 Chevrolet Astro 4.3L Hydroboost VIN: 1GNEL19W5Y
This vehicle came in with a complaint of a hard brake pedal when brakes applied and turning left or right simultaneously. We proceeded to check the hydroboost for proper operation when the power steering pump output shaft broke. We replaced the power steering ...
View
2002 Chevrolet Tracker LT 2.5L a/c blower,abs light VIN: 2CNBJ63492
we have a 2002 tracker which blows one fuse causing the abs light to come on,and the a/c blower to stop working . the fuse in question is marked "def" in the owners manual ,and is supposed to include rear window defogger,daytime running lights["drl"],and heate...
View
2003 Chevrolet Suburban 1500 LT 5.3L No Start VIN: 1GNFK16Z53
this vehicle is driving me crazy. The vehicle was towed from another shop that put an ignition switch in the vehicle hasn't ran since. I started with the basics i hooked up my tech 2 and had a po1518. i found a bent over terminal in the new ignition switch fix... Trouble codes: P1518
View
2005 Chevrolet Silverado 1500 5.3L wont take fuel VIN: 1GCEK19B95
hey guys, have a 2005 silverado 1500 4x4 with 5.3l. cannot put gas in this vehicle without nursing it through the outlet. takes forever. the owner has replaced the evap canister purge valve and we replaced the evap solonoid with updated parts a few weeks ago....
View
2002 GMC Envoy SLE 4.2L MIL Lamp on VIN: 1GKDS13572
Hi guys, This Envoy came in several weeks ago with a p0420a cat efficiancy code and after watching the rear O2 sensor trace on my genisys i saw it would periodically flat line. The code came back after a couple of weeks and seeing a normal but high voltage g... Trouble codes: P420
View
2002 GMC Envoy SLE 4.2L Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1GKDT13S62
Ok, this is going to be long... vehicle came in with the complaint that the speedometer quit working. I conducted a gauge sweep test and all gauges worked fine. Then I started retreiving codes. The BCM, IPC, ABS and air bag controllers all gave me a code U1016... Trouble codes: P0502 (vehicle speed sensor low/no signal), U1016 (loss of communications), U1000 (class 2 serial communication problem), C0237 (rear wheel speed sensor circuit fault), C0236 (rear wheel speed sensor circuit), C0267 (pump motor circuit open/short)
View
2004 GMC Yukon SLE 5.3L Seat Heater VIN: 1GEK13284R
Got this Yukon and the seat heaters for both cushions do not work(the part you sit on). The back warmer part works, but not the cushion. I have power to both cushions when the switch is activated, but no ground for both of them. I have no ground coming out of ...
View
2005 GMC Envoy SLE 4.2L Cuts out, Misfire VIN: 1GKDS113S5
2005 GMC Envoy 4.2L with dtc code p0302 cylinder #2 misfire and p0128 coolant thermostat. Replaced all 6 spark plugs with AC delco plugs and replaced ignition module coil #2. Fault came back after 3 miles, now the car stalls on the road but it starts back up. ... Trouble codes: P0302, P0128
View
2005 Hummer H2 6.0L MIL Lamp on VIN: 5GRGN23U75
this limo runs great just the check eng lamp blinks under a load , was running bad did tune up , check fuel pressure and replace injecter on 1 cylinder only the truck runs great and only does this once in a while under a load like when it has 20 people in it o... Trouble codes: P0301
View
2003 Pontiac Vibe 1.8L Warnng lamp VIN: 5Y2SM62833
Customer complaint of ABS light intermittently stays on upon start up. Light will go off as soon as driving begins. Verified complaint, light stays on, will go out at 3mph. Light never comes on while driving. There are no codes in the ABS system. Solus will no...
View
2004 Pontiac Grand Prix GTP 3.8L lifters VIN: 2G2WR524X4
Help, this is my own car. It started about a week ago. It has a lifter tick on start up at times. When it is making noise it lasts for up to 5 miles+ of driving. Doesn't seem to be temp. related. Had no warning or problems. It just started one afternoon. I hav...
View
2006 Saturn Ion-2 2.2L stays running VIN: 1G8AJ55F66
This car came in with the key stuck in the ignition and could not remove. Battery was dead, jump started car. Power steering message was on cluster had no power steering Shut off vehicle and removed key the vehicle stayed running. All the gauges, tac and light...
View

Fixes & Summaries for GM
Fix/Summary Answers
1994 Buick Century Custom 3.1L siezed sensor VIN: 3G5AX54T3R
well I had damaged it to much I believe to pull it outalthough tried to heat up a screww and pull it out. so I tried to pound it in but with my luck the way this job had gone i decided to pull the pan a little to see what was up against and to be on the safe s...
43
2003 Cadillac Escalade 6.0L front brakes VIN: 3GYEK63N63
this one drove me crazy if i hit the brakes the front would lock up if a tapped the brakes twice real quick they would release and if i turned the steering wheelleft and right just a little they would release i flushed the power steering twice and the brake fl...
8
1992 Chevrolet C2500 Cheyenne 6.5L Engine oil leak VIN: 1GCGC24F1N
Summary is unfortunately the truck has not come back. I bet they are driving around with the hose on the dipstick tube, running to a oil jug and just dumping the oil back in the engine.
8
1995 Chevrolet K1500 Cheyenne 5.7L Poor Idle Quality, Cuts out VIN: 1GCEK19K3S
Thanks to all those who took time to offer some help. Special thanks to Todd from N.C. who forwarded a NAPA tech line response from a guy who had a similar problem. He replaced the ECM and when that did not cure the condition suspected the EPROM. Even though t...
21
2003 Chevrolet Trailblazer North Face 4.2L rear ac&heater VIN: 1GNET16S03
thanks to everyone that replied the job does,nt seem so scary now thanks to you. She has to hold off on the repairs till a later date. Thanks again Steve
13
2004 Chevrolet Cavalier 2.2L A/C request VIN: 1G1JC52F24
Thanks to all who replied. We have replaced the BCM and also found a break in the serial date wire. Although we had attached a jumper wire, it was a break in the wire in the area between the jumper and connector pin. Look carefully at this if you get the same ...
3
2002 GMC Yukon XL 2500 SLT 6.0L compressor VIN: 3GKGK26G82
OK THE TRUCK CAME BACK AFTER THE WEEKEND, PULLED OFF THE IN-LINE FILTER AND IT WAS CLOGGED AGAIN. CALLED MY BG REP AND HE TOLD ME THAT THEY HAVE A FLUSH I COULD USE. I USED IT BUT I AM NOT SURE HOW GOOD IT WORKED? THE OIL WAS LIKE SLUDGE IN THE FRONT SECTIONS ...
21
2000 Pontiac Grand Am SE 2.4L cooling system VIN: 1G2NF52T1Y
sorry for the late post. many thougtful replies included:blocked/restricted heater core,cheap/defective thermostat,cracked head,etc. turned out to be a blockage(chunk of black rtv) in the 1/4" steel tube that runs along the back of the head(steve from ontario ...
12
2002 Pontiac Grand Am GT 3.4L securtiy VIN: 1G2NW12EX2
REPAIRED PASSLOCK WIRING,HAD PRIOR POOR REPAIR. THANKS TO ALL THAT REPLIED
3
Prev (Also Available: All, Asian, Chrysler, European, Ford, GM.) Next