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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 28, 2006
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Open Help Requests for GM
Help Request Answers
1992 Buick Park Avenue 3.8L trunk\liftgate pulldown VIN: 1G4CW53L8N
alright thanks in advance to all the gm gurus this park avenue has a trunk relese that works, but does not pull down when lid is closed.i cant find anything in alldata that gives any trouble shooting test. so any information about how this system works would b...
1999 Buick Century Custom 3.1L neutrals at stop VIN: 2G4WS52M5X
hello all, first i want to thank all for any help i get here and the help in the past. this is my sister in laws car. it has been very well maintained and is in very good shape. according to her the problem started out of the blue came on fast. i drove the ca...
1994 Cadillac DeVille 4.9L Excessive Emissions VIN: 1G6KD52B2R
car failed emission check (see emission readings). car runs normal, no engine codes, converter passes all tests. Fuel presuure is within specs. adn no leaks found in the fuel regulator. The o2 sensors respond to full rich or lean conditions. the egr valve is w...
1999 Cadillac Seville SLS 4.6L magna steer VIN: 1GBKY5498X
STEERING SERVICE LIGHT PROBLEM: I cleaned and flushed power steering fluid light came back replaced rack and pinion service light comes back replaced ABS computer still get a P1241 magna steer malfunction according to data screen. checked electricity continui...
1992 Chevrolet Beretta 2.2L No Start VIN: 1G1LV134ON
Just Shut Off one day driving down the road,need help ,No crank signal on hand held Matco scanner, no codes found, thought at first it was a fuel pump , because it just died and then restarted up but ran only for a few seconds and died again and has started up...
1993 Chevrolet K2500 Cheyenne 6.5L No Start VIN: 1GCGK29FOP
I have this chevy diesel pickup that came in with hard starting and ran rough. Figured it was a fuel filter. Replace fuel filter, started and died, filled fuel bowel up. It would start and run until fuel was gone from bowel. Tried to bleed system - was getting...
1993 Chevrolet K1500 Suburban 5.7L temperature gauge VIN: 1GNFK165K5
The customer complains that the temp gauge is reading towards the low side of the gauge. He said that it used to read approximately half way on the gauge (about 210) but now it reads about 1/4 inch below that even when the engine reachs normal operating temp. ...
1997 Chevrolet Corvette 5.7L ABS Module VIN: 1G1YY22G5V
2 Codes in PCM return immediately, ABS code is for "temporarily inhibit ABS" basically it doesn't let a relay ground to power up the ABS module. If I manually ground this relay, it powers up and seems OK, haven't driven with relay grounded to see if it acts up...
1998 Chevrolet Venture 3.4L bogs on hard acceler VIN: 1GNDX03E8W
I know I'm overlooking something. When floored engine revs to about 2800 to 3600 rpm then bogs, spits,sputters,can't go faster. Seems worse when cold or warm. Seems like over-active rev limiter. Iatn data base says trans sends gear selection to pcm and rev lim...
1999 Chevrolet C1500 Suburban 5.7L No Start, Poor Idle Quality, Stall, Misfire VIN: 3GNEC16R7X
unit starts and runs fine most of the time has had new filters, distributor cap, rotor, plugs, fuel pressure checks good (62psi ko, 56psi wot) ONLY cranks, hits, stalls, and pops/backfires at intake on first start after parked all nite with wet or high humidit... Trouble codes: 1626 (theft enable signal lost)
2001 Chevrolet Silverado 1500 5.3L shift patterns VIN: 1GCEK19TX1
Been fighting this one- had this chevy come in several weeks ago with strange shift patterns at times and a code for 4wd ckt problem. Went into freeze frame and failure occured at 59 MPH so we changed switch and all was well with truck. This morning truck come...
2001 Chevrolet S10 2.2L tailights/fuse box VIN: 1GCC519551
Has anybody encountered fuse box issues on thi trus truck,..started with turn signal issues,..replaced multi-function switch,.for erratic signals,..was fin for a while,.then the siganl stat went erratic,..replaced it,..fine for a while then no tail lights,..wa...
2002 Chevrolet Astro LS 4.3L Cuts out, Stall, Misfire VIN: 1GNEL19X42
Hey guys and gals, I have a headache Astro in my shop right now and was looking for some input. I am not sure if I have two seperate issues here or one gigantic intermitant problem. I appoligize in advance for the lengthly post but I beleive all of the info is... Trouble codes: P0335, U1300, P0706
1998 GMC C3500 Sierra SL 6.5L Stall VIN: 1GDKC34F0W
I looked on alldata for tsb's none for this specific problem,road tested for an hour watching scan data with a tech 2,truck did not stall.Customer claims some days it will not stall,other days 4-5 times.Stalls at a stop,cruising at highway speed,engine warm or... Trouble codes: P0238, P1216 (Fuel sol res time too short/This code is not currentFail since clear)
1999 GMC C1500 Sierra SL 5.7L a/c VIN: 2GTEC19RXT
the problem is no cooling and the high side is 450-500 and the low side is 70-100 i checked both lines high side is hot and low side is cool
2000 GMC K3500 Sierra SLT 7.4L Hesitation, Poor Fuel Economy VIN: 1GTHK33J7Y
truck came in with hard to start complaint.i also noted a lower intake gaskets leaking, advised customer. he will fix later.i had to crank engine for several seconds before it would hit-up and run. the engine would shake and chuggle for just a second or two li...
2001 Oldsmobile Alero GX 2.4L security VIN: 1G3NK12T91
Hello and thanx for your time. This car has been to dealership at least 3 times for intermittent security lockup. The module must be reset to start it by leaving key on with charger on it for 1/2 hour. It may only screw up once in 3 weeks, but happens at inopo...
1993 Pontiac Bonneville SE 3.8L No Start VIN: 1G2HX52L0R
this car was brought from another shop and has been a complete nightmare. i am losing the injector pulse Intermittently. sometime it will act up many times in a row and like the condition that i have now is that i has not acted up in couple of days. but i know... Trouble codes: P0341
1995 Pontiac Grand Am SE 2.3L No Power VIN: 1G2NE55D4S
Owner said they have replaced a lot of sensors and new fuel pump computer e.t.c.Engine vacuum was low so I checked cam timing and it was off one tooth.Installed new chain and tensioner and it increased vacuum from 13 to 15 in but still has no power.Computer sy...
1995 Saturn SL1 1.9L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on VIN: 1G8ZH5283S
1st time ive seen this car. looks like somebody replaced engine with newer model year one. went through flow chart for code 43. led me to replace knock sensor. sensor for 93- 95 is different than the one in car (wire connetcor). got one for 96 & newer & it is ... Trouble codes: 43 (esc module or sensor circuit problem- reoccurs), 44 (lean exhaust- did not return), 74 (info flag-coolant temp/ transaxle temp- did not return), 52 (info flag- battery volys out of range- needed alternator- repaired), 27 (quad driver module fault- did not return)
1996 Saturn SL1 1.9L engine light VIN: 1G8ZG5283T
Customer came in complaining of engine light , hooked up modis giving codes p0341 for cam sensor. No Cam sensor is located on this engine. This model dose not have a cam sensor. Ran into this one other time with the same model car but customer did not want us ...

Fixes & Summaries for GM
Fix/Summary Answers
1988 Chevrolet R10 Suburban Scottsdale 6.2L unsure VIN: 1GKER16C8J
Thanks to all that replied.I tried spraying condenser with water,no help.I blocked off heater hoses to front heater core,no help.This is an r-12 system,With comp. and accumulator replacement I added 6oz.oil,system holds 11oz. so i dont think it has too much oi...
1988 Chevrolet Beretta GT 2.8L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Stall VIN: 1G1LV11W0J
Well we got it fixed. Turns out the cat was broke and would restrict exhaust flow sometimes. Every time the broken pieces would turn sideways the car would run bad. With the car running bad on and off and the PID's looking crazy we were chasing our tail. I gue...
1989 Chevrolet Camaro Iroc-Z 5.7L Cuts out VIN: 1G1FP2189K
thanks to everyone for there suggestions, I had pretty much done all of it already, even went as far as changeing ign switch, thought I might of had it with the vats security system changed key (had a worn resistor) and tumbler. but had no effect all wireing w...
1995 Chevrolet Monte Carlo Z34 3.4L Timing Belt VIN: 1G1WX12XOS
Car is running fine.Talk to owner the other week timing belt is now starting to get quieter.The only way to check the cams to see if they have slipped is to take apart the upper intake and valve covers.The motor will run good 180 degrees out.The only thing I n...
1995 Chevrolet C1500 Cheyenne 5.7L slave cylinder &clutch master cylinder VIN: 2GCEC19K1S
first,let me say that i am very impressed,satified,& very happy to be a member of this great network of profesionals( automotive technicians),i recieved 36 replies in total.i want to thank each & every one of you for great help & information.we learned a lot o...
2000 Chevrolet Express 3500 LS 5.7L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: 1GBJG31RXY
thanks to everyone who replied. all your input was checked over again by another tech that had a fresh look at the van. we repaired the van. we found the green/white signal wire at the iac motor broken inside the connector. when it was checked unplugged for ci... Trouble codes: 1509B (no response from iac/idle too high).
2002 Chevrolet Silverado 2500 HD 6.6L Poor Idle Quality VIN: 1GCHK23172
vehicle had clogged fuel filter.forgot basics. replaced fuel filter. clear codes. ran specfic dtc test. ran and passed. special thanks to the 3 that replied. iatn is a great tool. Trouble codes: P1093 (fuel pressure problem).
2004 Chevrolet Classic 2.2L ABS Module VIN: 1G1ND52F24
Thanks to the few that did reply- however none of your ideas solved the problem we had- abs sensors/wheel bearings (oem) and abs module (oem) and testing with lab scope did not work- Vehicle belongs to Navy Recruiting office re US Govt. Vehicle given back for ...
2003 GMC C7500 6.6L Nothing VIN: 1GDM7D1C53
Fred from New Jersey Help me on this,He was right on the Money as the procedure,Light is off,I'm ready for another one to shut off. Thanks Fred
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