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Prev Professional Automotive Repair Technical Discussions for March 13, 2007
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Open Help Requests for GM
Help Request Answers
2001 Cadillac Seville STS 4.6L Vibration VIN: 1G6KY54931
Vehicle has Slight vibration or shimmy @ 70-75 Mph very smooth at all other speeds. My Father in Law (who owns this car) has driven Cadillacs his entire life as the second generation owner/operator of our shop he is not just a picky customer this is just hard ...
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1995 Chevrolet Blazer 4.3L No Start, Stall VIN: 1GNDT13W85
Owner dropped this off towed in. Said it died on decel. Started right up for us. Drove it around doing errands, long runs, etc.. with no problems. Died once and by the time we grabbed the diagnostic equip, it started and ran great. We don't do alot of light du...
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1995 Chevrolet C1500 Suburban 5.7L l VIN: 1GNEC16K3S
Hello everyone, I have an odd problem. I have this Suburban with a 4L60E. The owner has had repeat problems with this trans. The 24's aint helpin. I got this truck after the owner got mad with her past mechanic. I rebuilt the tranny, and a couple of times unde...
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1999 Chevrolet Venture 3.4L converter clutch VIN: 1GNDU03E9X
Hi, folks. This venture has code P0742--Torque converter clutch stuck on. The trouble is it may only do this once every 6 weeks. Customer described vehicle symptom as a hesitation, and CE light on. When this code sets the PCM will command tcc full on. I am won...
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2002 Chevrolet Trailblazer LS 4.2L Starting VIN: 1GNDS13S42
Howdy Folks, Posting this for an old customer (grumpy old fart) that complains that his trailblazer will crank, not start, then not crank when the weather is cool and damp. I read through the archives and saw some issues with ignition switches and starter sole...
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1996 GMC Sonoma SLE 4.3L transfer case VIN: 1GTDT19W6T
I have A 96 GMC sonoma that will not shift into 4low it shifts fine from 4hi to 2wd and vice versa. When I press the 4lo button it just blinks at me. I have tried a couple of flow charts and found I have no outputs from the tccm to the transfer case. I do have...
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1999 GMC C1500 Suburban 5.7L No Start VIN: 3GKEC16R8X
Vehicle is a startn and die. The problem is in the paslock security system. There are no codes in the PCM, the code in the paslock module is B2947-Sec system sensor power low. If you erase the code it comes back immediately. I have powers and grounds at the pa... Trouble codes: B2947 (security system sensor power circuit low)
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2005 GMC W5500 5.2L No Start, Hard Start VIN: J8DE5B1675
Good Day This truck is a medium duty W5500 Cab-over diesel. It is an Izuzu 4 cylinder engine. There is no dealer in this area for this truck and there are very few of these units in this area. I am posting this for another repair shop and I am trying to help ... Trouble codes: P0405 (EGR Position Sensor out of range history code), P0400 (EGR Flow Excessive history code), P0234 (Excessive Turbo Boost Pressure history code)
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1995 Oldsmobile Cutlass Supreme SL 3.1L air bag VIN: 1G3WH52M0S
Fellow Techs I would like to thank you in advance for your help. We have a open in or to the left front air bag sensor, on a 95 cutlass. But we can not seem to find the sensor, My repair info, says it is on the left of raditor support. If anyone knows just wh...
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1999 Oldsmobile Intrigue GL 3.5L Hesitation, Cuts out, Misfire VIN: 1G3WS52H1X
Hello all and thanks in advance for any help, I have a 99 intrigue that came in barely running and had been checked out by the customers friend who "knows about cars" but could'nt fix it. I hooked it up to the solus and found more codes than I care to mention ... Trouble codes: P0463
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1988 Pontiac Firebird 5.0L fuel system?
new to the forums guy. i am a auto tech student currently employed in the trade for over 3 years. this is my personal car and its driving me batty. when the car warms up if u hold a costant RPM it will start to lose RPMS and then surge back up. or if ur drivin...
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1997 Pontiac Grand Prix GT 3.8L Alternator VIN: 1G2WP52K2V
Hi everyone and thatnks in advance for the help. I have an odd charging system problem here. Car came in with a bad alternator (not charging) battery was discharged (new). Recharged and tested battery. (tested good) replaced alternator with rebuilt delco unit....
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2003 Pontiac Montana 3.4L No Start, MIL Lamp on VIN: 1GNDX03E63
Thanks in advance for all your help. This post is actually early, getting a head start for tomorrow. Van came in to me last week with rough running complaint & MIL on, stored fault code P0336 24X CKP Sensor Out Of Range. Last week the fault wasn't present duri... Trouble codes: P0336 (24x ckp sensor fault)
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2000 Saturn LS2 3.0L MIL Lamp on VIN: 1G8JW52R6Y
This vehicle came in to my shop with the SES light on. It has a PO171 hard fault, and a PO174 pending. I can not notice any other driveability symptoms. The car runs fine. The long term fuel trim is approx. 25%, and the short term fuel trim is around zero for ... Trouble codes: 171 (bank 1 lean), 174 (pending bank 2 lean)
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Fixes & Summaries for GM
Fix/Summary Answers
1998 Buick Regal 25th Anniversary Edition 3.8L abs VIN: 2G4WF5216W
Thanks to everyone that responded, to attempt to isolate the problem we switched front sensor/bearing assenblies from side to side. Problem has not reoccured. Wish I had a more info. on what the cause was ( I suspect intermittant problem with sensor but unable...
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1993 Cadillac Allante 4.6L 1-2 shift VIN: 1G6VS3391P
ok here it is. on the early models (1993 & 1994 with 2 electrical pigtails) the gasket will have a slit at the top right when viewed as it is installed. also at the bottom, there are 2 slotted holes that are farther to the right. the later design will not have...
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2000 Cadillac DeVille DHS 4.6L Tach, speedo,turn signals and backup warning indic VIN: 1G6KE57Y4Y
Found the problem, it was the ignition 1 relay under the back seat. I changed a few relays around and thats when I found the problem relay.
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1999 Chevrolet C1500 Suburban 5.7L door locks VIN: 3GNEC16R4X
hey guys i want to say thanks,i had to replace all door actuators aswell as replace door lock inversion module,do to inside lights would flash when you hit they lock switch,thanks for everything.
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2000 Chevrolet Corvette 5.7L Rear of transmission leaking VIN: 1G1YY22G0Y
This vette is on the road. Thanks to all that came to my rescue in hours of posting. I dropped the rear cradle went to pull rear end out. It would not come out all the way due to long tail shaft of transmission. I did not remove trans. We had to cut into the f...
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2003 Chevrolet Venture LS 3.4L MIL Lamp on VIN: 1GNDX03EX3
Sorry this took so long to post. Upon suggestion from Larry [...] disconnected PCM. After doing so, I never saw it go open loop again during normal operation after warmup unless I was above 85% throttle. I let cust have it back, two weeeks no problems, Yesterday c... Trouble codes: 131 (HO2S low votage).
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2005 Pontiac Montana SV6 3.5L abs & awd VIN: 1GMDX33L65
Thanks to everyone for the help,we replaced the left rear wheel brg,cleard all codes and all was fine for a day customer returend a day later with c0045.no other codes came back so you gussed it a bad wheel brg ??? replaced wheel brg with a diffrent brand and ...
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1995 Saturn SL2 1.9L Sway Bar VIN: 1G8ZK5270S
Sorry about the fix delay but when your dealing with a $300 car the customer did not have the money to fix what I recommended so it sat here for 3 weeks. The fix we will post is replacing the control arm, almost everyone has recommended this and checking the a...
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2004 Saturn L300-1 2.2L oil VIN: 1G8JCJ4F74
as of now i replaced the engine...im going to tear down the engine and find out why two cylinders stopped getting oil the other day i had another saturn towed in with a 2.2 with same problem. when i find the cause i will post it
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