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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for February 23, 2012
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Open Help Requests for GM
Help Request Answers
2004 Buick Park Avenue 3.8L Rap VIN: 1G4CW54K04
I have a 2004 park avenue that the RAP will not shut off, the coustomer had a complante about a dead bat and when she brought it the radio and the power windows will not shut off, I have no codes, I have checked the RAP relay and its good. Please help
2005 Buick LeSabre Custom 3.8L Ride Control VIN: 1G4HP54K75
Had code c0660 for level control exhaust valve circuit malfuntion to begin with. Code now gone but rear shocks not inflating properly. Is there a means to calibrate rear suspencion?
2006 Buick Terraza CXL 3.5L Cuts out VIN: 5GADV33L06
First of all, thank you for taking time to reading my problem. I have this 2006 Buick Terraza here that likes to cut out once in a while. It doesn't seem to matter if it's cold, hot, wet or dry. It's like you quickly shut off the key and right back on. It does...
1995 Chevrolet Impala SS 5.7L Misfire VIN: 1G1BL52P7S
Need some help. This vehicle has me talking to myself. Came in with CEL on & EGR valve code stored in memory. Replaced valve cleared code & drove car several times with no problem. Customer returned a few days later complaining of car running bad. Had a stumbl...
1998 Chevrolet C1500 Cheyenne 4.3L Stall VIN: 1GCEC14W0W
Vehicle came in for a provincial safety inspection. Required brakes and lamp repair, otherwise good overall condition. Drove in no running complaints. Repair work completed, battery was low from underhood light going unnoticed being on, boosted from a booster ...
2004 Chevrolet Trailblazer LS 4.2L Cluster/battery dead VIN: 1GNDT13S04
I have this Trail Blazer in the shop came in for the battery going dead and cluster inop/acts funny. First I tested the battery and charging system both ok. Performed a draw test started with 2.0 amps then droped to .01 after a short time. Thats seems ok. So m...
2004 Chevrolet Express 1500 4.3L Brakes VIN: 1GCFG15X84
Van stops ok. But, when you very slowly & gradually come to a stop in "stop-&-go" traffic; at the last split second before stopping the van feels like you hit an ice patch. If you apply the brakes heavily, no problem. Van had leaking PS hose to hydro-boost br...
2005 Chevrolet Silverado 2500 HD 6.0L Poor Idle Quality VIN: 1GCHK23U95
I have hit the wall with this one and am looking for suggestions of where to look next. The LTFT on both banks indicate a lean condition, more under acceleration(+20%)but also high at idle(+10%). A lot has already been done to this truck so bear with me as i t...
2006 Chevrolet Silverado 1500 LT 4.8L No Start VIN: 1GCEK14V26
vehicle came in on a hook died while driving.had no fuel pressure.fuel guage was on empty.added fuel truck cranked and ran fine,but had low fuel pressure.went to move truck later ,no start again,tested fuel pressure had none pump is running.replaced fuel pump ...
1995 GMC K1500 Sierra SL 5.7L brake pedal VIN: 2GTEK19KXS
Truck came in with complaint of pedal soft and going to the floor occasionally. Test drive showed the pedal to be very high and hard to push like 2X4 was under it. Front calipers were not releasing and front rotors were very hot. Loosened line at master cylind...
1997 GMC C1500 Sierra SL 5.0L ABS module, master cyl VIN: 1G15C10M1V
i have this 97 gmc 1500 "rears drum" that came to me with a bad front pulsation and a split second pull to the left while braking then strait so im thinking blockage/binding caliper, upon inspection i find new flex lines/ new pads,"customer just bought truck" ...
1997 Pontiac Trans Sport 3.4L Misfire, MIL Lamp on VIN: 1GMDU06E9V
Hello Tech's. Vehicle comes in failing the Ca. Smog Test. A code for the EGR reveals a "chatter noise" when the EGR test is being used with the engine OFF, key ON. The desired and the actual PIDs do not match. With a NEW EGR plugged in, KOEO, you can see the p... Trouble codes: P1406 (Egr), P0300 (Multipal misfire)
2000 Saturn LS2 3.0L 1-2 shift VIN: 1G8JW52R3Y
The customers complaint is that intermittantly approx twice a week the service light will come on (wrench) and the trans will shift harsh until the key is cycled off.This will only happen from coming off a red light.Never acts up will cruising.The misfires onl...

Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick Regal Custom 3.1L Cooling system VIN: 2G4WB52M3S
Well thanks to some members, I had my tech remove the water pump and physically check the impeller to see what it looked like, he said he could see it through the outlet hole and it spun with the pulley, when he got it off the plastic impeller was not attached...
1998 Cadillac Catera 3.0L smell VIN: W06VR52RGW
Thank you for all your replies. First Catera I have worked on. I pulled the plenum off this afternoon and thank you Scott. It was the fuel pressure test port. It had the valve cap on the port and when pressurized the system there it was,not much (about 2 min. ...
1999 Chevrolet Blazer 4.3L 4w4 VIN: 1GNDT13W4X
thanks for all of the replies. i forgot the #1 rule in auto repair, never assume the previous repairs are right. when the customer installed a new dash switch he installed a 4 button switch, come to find out this blazer takes a three button switch. installed t...
1996 GMC C1500 Sierra SL 5.7L Hesitation, Surge, Cuts out VIN: 2GTEC19R4T
Want to thank everyone for the awesome help. I love iatn:). Fuel pressure on this truck was about 56psi not running and 55 running. But as we found later after we received so many help request about distributor problems and fuel problems we decided to replace ...
2005 Hummer H2 6.0L ABS Light ON VIN: 5GRGN23U45
Found That Customer Had Replaced Both Front Wheel Hubs At Another Shop (not one like he originaly said). I Could Not Tell Who Made The Hubs But They Did Say Made In Taiwan. There Appeared To Be One Extra Tooth On The Tone Wheel Causing The Increased mph Readin...
2001 Oldsmobile Intrigue GL 3.5L Surge, Cuts out VIN: 1G3WS52H31
Thanks for all the replies. I was aware of the ignition switch and power supply issues common on some of these cars, and did not see any evidence that I was dealing with such. What I ended up finding was that after probing the power feed circuits at the PCM,...
2002 Oldsmobile Alero GL 3.4L air bag VIN: 1G3NL52E32
Believe it or not, the airbags are plug and play after you clear the code. Once the bags were installed, I cleared codes and they self tested just fine. Thanks for all the help on this one. It is much appreciated!!
2005 Pontiac Vibe 1.8L Radio & Heater Control VIN: 5Y2SM63825
Unfortunately, the customer declined repairs. However, I would like to thank Steve for a couple pointers: - IMBIVIOUs.com - a source for GM instrument panel illumination and stepper motors. - When soldering in a lamp like the 7219 to prevent the two bar...
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