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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for June 9, 2005
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Open Help Requests for GM
Help Request Answers
1965 Buick RIVIERA 7.0L master cylinder VIN: 494475H942
Greetings, This Riviera is a beautiful classic in excellent condition. The current owner drives it as his toy. The car just suffered a rot-through on a brake line and being a single master cylinder, all brake pressure was lost. Fortunately it happened in his ...
1996 Cadillac DeVille 4.6L s.i.r. VIN: 1G6KD52Y3T
I'm searching for any help on this, I got this cady in with a code #26 for the drivers initiator ckt open, I would pressume this is the Air bag module itself ?? I started with the flow testing for this code and got snagged up almost immediatly. The flow char...
1998 Cadillac DeVille Concours 4.6L HVAC doors? VIN: 1G6KF5496W
I've got a dual climate question. I have heat on drivers side and A/C on pass. side. I don't have very good component locator or diagnostic charts for this system. I was wondering if There could be a stuck door somewhere? When the coldest setting is chosen, I ...
1998 Cadillac Seville STS 4.6L Stall VIN: 1G6KY5494W
customer leaves house onto hwy 2-3 miles to town 1st stop sign vehicle does not stall across town 1/4 mile in front of school vehicle stalled --customer said vehicle started then stalled tap on accelerator and vehicle started and ran fine rest of day
1982 Chevrolet Corvette 5.7L No Start VIN: 1G1AXY878L
This car is a no start most of the time. Crossfire TBI. Has 13 lbs of fuel pressure & what looks like to be very good spray from both injectors, but no start. Spray some carb clean or poor in a little gas & it fires right up. Stays running but is very lean. Wo...
1985 Chevrolet Corvette 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, MIL Lamp on VIN: 1C1YY0780F
Hello to all. I'm having a severe case of frustration with this 85 Corvette. 90% of the time, it'll set a code 34 within a couple of seconds of starting. The MAF sensor is new (not rebuilt), the ECM is a NAPA unit we put in, the PROM is a new GM unit and the B... Trouble codes: 34 (maf sensor low)
1988 Chevrolet R30 Silverado 7.4L Poor Idle Quality VIN: 1GCHR33N5J
hi guy, i have a chevy truck that has a high idle([...]) i found the t/b adapter base gasket leaking, so i replaced both and the idle is still high. i smoked it again and could not find any more leaks. i then removed the idle air motor to find that it was n...
1993 Chevrolet Camaro Indianapolis 500 Pace Car 5.7L Surge, Misfire VIN: 2G1FP22PXP
Hello again and thanks for taking time to read this. This Camero has a chuggle at 45 MPH approxmately 1500 RPM. This is shortly after shifting into fourth gear and the converter is locked in. If you go above 50MPH the symptoms are gone. It doesn't feel like a ...
1994 Chevrolet P30 Box 5.7L Drive train VIN: 1GBGP32K2R
Hello Techs, I have got a nasty decel vibration on this box truck. It occurs when you let go of the throttle above 40 miles per hour. It seems to come from the rear of the vehicle. There is no vibration below 40 or at all on accel. A light touch of the gas pe...
1997 Chevrolet Camaro 3.8L Misfire VIN: 2G1FP32K1V
This car has a miss on cyl#4 under load, always. I have swapped plug, wire & Injector with cyl#2. The miss stays with #4. I have gone around the intake with acetylene and there is no change. It is usually around 1800 RPM, right when the convertor can't take an... Trouble codes: P0300 (Random Cylinder Misfire)
1999 Chevrolet Venture LS 3.4L Misfire VIN: 1GNDX03E2X
after driving 20 minutes (hot) , starts to missfire (8-10 misses very small) not even big enough to tell what cylinder happens very quickly, you can feel the car skipping. seems to be worse when turning and pulling away. Any ideas?? Chad [...]
2001 Chevrolet Silverado 2500 HD 8.1L main seal ??? VIN: 1GCHK23G01
Good morning I know I have seen the answer to my problem before, but I have not been able to locate it in the archives. After the truck has been driven about 15 minutes it will start to give off a high pitch whistle at certain speeds it seems to be rpm relate...
2001 Chevrolet Express 2500 5.0L vents VIN: LHOHOHOHOH
Never seen this. Just charged up the ac on this van felt the vents on driver side all were warm walked to the other side of van and the pass side vent was ice cold im sure its a vent door but cant get a picture of internal dash parts anyone seen this
1999 Pontiac Grand Prix GT 3.8L no start VIN: 1G2WP12K7X
hey guys, i need some help. i picked up this vehicle that the customer stated that it would not crank. checked vehicle and found that positive battery cable had repair end on it. replaced the positive cable and still no crank. replace starter and now vehicle w...
2002 Saturn L200 2.2L engine "rev" limit VIN: 1G8JU54F42
my wife's car. accel from stop or while merging onto highway the trans seems to hold too long causing what appears to be a protective "rev" limiter. Back off the throttle and trans shifts normally. do not notice when going into passing gear at high speeds. Tac...

Fixes & Summaries for GM
Fix/Summary Answers
1991 Cadillac DeVille 4.9L Electronic VIN: 1G6CD53BOM
thanks to all who replied. I had advised the customer that the torque converter was bad. Customer does not want to spend the money at this time. Again thanks to all who had replied.
2001 Cadillac DeVille DHS 4.6L accys VIN: 1G6KE57Y81
problem with heater/ac was a bad door actuator-evidently total coincidence to the dead battery. did confirm with dealer that leaving key in ign overnite has caused other complaints of dead battery (live & learn). we had no success with any method of performing...
1993 Chevrolet S10 Blazer Tahoe 4.3L 1-2/2-3 VIN: 1GNDT13W8P
Found broken power wire (pink/black)to trans. Wire rubbed through at fire wall. Replaced shift solenoids. Thanks!!
1998 Chevrolet Express 3500 5.7L No Start, Stall, Misfire VIN: 1GCH635R6W
Thanks to those who replied...the fix to this problem was a new gear and shimming the distributor with 2 gaskets from the GM dealer...the gaskets lifted the distributor exactly 94 thousands of an inch...note...it worked but we ran the vehicle approx. 20 miles ...
1993 Geo Tracker 1.6L no tcc lockup VIN: 2CNBJ18U1P
after a lot of research and listening to a lot of people, the problem was all to simple. we installed the wrong gov psi sensor. we requested the part from our supplier and installed it. turns out it was what they listed, but it was wrong. only the dealer was a...
1992 GMC Safari 4.3L Hesitation, Stall VIN: 1GKEL19WON
Thanks for the help guys. I checked each suggestion you made and nothing seemed to help this problem. Pulled the O2 sensor and the cat is not plugged. No play in the distributor shaft. Installed a new Delco fuel pump and the pressure is up a little. Put new pl...
1994 GMC Safari SLE 4.3L Cuts out, Stall, MIL Lamp on VIN: 1GKDM19W7R
hi guys!most of you told me to check the ignition switch so i supposed there's a lot of problems there,but this switch was ok.Randal [...] pointed me to the right direction;there's some kind of junction block behind the battery,it was melted.i didn't replace...
1998 GMC Safari SLE 4.3L brake pull to the left VIN: 1GKEL19W3W
Thanks for the Response Guys. We Bled the brakes this time after running the controller with the scan tool. Everything is ok now . The van does not pull. We saw a rush of fluid come fron the line to the right side after working the abs contoller. Something mus...
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