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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 14, 2013
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Open Help Requests for GM
Help Request Answers
2003 Cadillac DeVille 4.6L oil leak VIN: 1G6KD54Y53
Vehicle came in for a severe oil leak from between engine and transmission. While running there was a steady drip from what appeared to be the rear main seal, the flywheel was also wet. Dropped the entire engine and trans assembly on subframe and separated eng...
1997 Chevrolet Blazer 4.3L Vacuum
On accelerating goes to defrost mode.check for vacuum leak no leak check vac tank ok overlaid vac hose to rotory vac valve no change plug vac hose to 4wd check vac at check valve 15in of vacuum. Don't hear any vacuum leak inside.replace rotary vacuum valve no ...
1998 Chevrolet C3500 Cheyenne 5.7L Poor Idle Quality VIN: 1GBJP32R2W
i was asked to help out on this this truck came in about a week back with a C E L lite on (p1509) the I A C was replaced .ran great about a week now it is back at the shop. with high idle around 2300 rpm can not control idle with scan tool I A C reads 0. T P S... Trouble codes: P1509
2000 Chevrolet S10 2.2L No Start VIN: 1GCCS1458Y
Pulling hair trying to diagnose a no spark condition. Customer stated that the vehicle was running rough for a few days before it refused to start. Came in on a hook. We pulled codes, had a crank sensor performance and a cam sensor performance code so we check... Trouble codes: P0336 (crank position sensor performance), P0341 (cam position sensor performance)
2002 Chevrolet Blazer LS 4.3L Radio VIN: 1GNDT13W82
We had this Blazer come in. The customer removed the door panel himself and tried to put the window motor in. We put the window motor in for him and let him put the door panel back together himself. Back in today. His complaint is the radio now shuts off as ...
2005 Chevrolet Astro 4.3L rear end VIN: 1GNEL19XX5
Hi fellas, got one here that's making a noise from the rear end but we are not sure there's even a problem. Vehicle makes a popping noise from the rear end, but only when moving forward at slow speeds with the steering wheel cut sharply in either direction. It...
1994 GMC C2500 Sierra SL 5.0L Poor Idle Quality, Misfire, Hard start VIN: 1GTFC24H9R
Runs rough at cold idle, seems to run better when warm.
2002 Pontiac Grand Am GT 3.4L Hesitation, Misfire VIN: 1G2NW12E62
the vehicle runs fine during normal operation,problem only occurs during w.o.t. it will hesitate and misfire on all cylinders.i could not duplicate issue because I would not run the vehicle that hard,so had the owner come take me for a ride and she scared the ...
2003 Pontiac Grand Am GT 3.4L Misfire VIN: 1G2NW52E03
This is my boys car. After sitting awhile, usually overnight it will misfire for about 30 seconds when started and then run fine for the rest of the day. Data shows #1 cylinder is the one missing. I have changed the plugs & wires and the #1 injector. The only ...
2006 Saturn Ion-2 2.2L Steering pump
When driving steering is ok the steering light comes on. Steering hard to turn with light on. Code C0475 looked up and told steering column needs replaced. It also states could be module, could you tell me were is the module. Signed up for motologic but will t...

Fixes & Summaries for GM
Fix/Summary Answers
2003 Cadillac Escalade 6.0L Hydroboost VIN: 1GYEK63N43
Well I am going to call this one fixed. I did several brake bleeds on the system. Even did the old fashioned have someone pump pedal while I open bleeders. Cracked open lines at master cylinder and let drip. Did several gravity bleeds. Also did the automa...
1994 Chevrolet Caprice Classic 5.7L distributer VIN: 1G1BL82P9R
Wanted to let customer drive this for a while to make sure it was fixed, no leaks for a couple of weeks now ! it ended up being the small water pump seal. we finally found this by taking apart an old distributer to use the shaft to plug dist seal and then used...
2003 Chevrolet S10 4.3L Misfire VIN: 1GCCT19XX3
It counts miss fires driving also. I put two gm crank sensors in it shims or no makes no difference. It's had two gm caps put on it. Taken off drive belt and still misses and hear no engine noise. compression is 160 static 75 at 2200. vacuum is 18 at idle an... Trouble codes: P0300.
2004 Chevrolet Cavalier 2.2L odometer VIN: 1G1JC52F34
The customer has not returned to fix this problem, here are the posts I have received, " we repair clusters as this is the core of our business, not experienced the 999999 failure, mileage is stored in bcm and this seems like the logical culprit, typically the...
2007 Chevrolet Suburban 1500 LS 5.3L A/C Air Temp Out Left Vents VIN: 1GNFC16067
Many of you said most common problem is internal failure of the left temperature door actuator. That is what fixed my vehicle. It was suggested remove old actuator, turn door shaft by hand, you should hear a solid thump when turning fast to cold & to hot posit...
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