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Prev Professional Automotive Repair Technical Discussions for July 16, 2008
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Open Help Requests for GM
Help Request Answers
1995 Buick LeSabre Custom 3.8L air bag
hi guys, i have a buick here that has a airbag light on. no codes are setting and everything checks out ok. i'm leaning twards the i.p cluster internal problem, has anyone seen this and am i on the right track! thanks in advance.
1997 Buick LeSabre Limited 3.8L Accessories VIN: 1G4HR52KXV
when you hook up battery cable blower comes on,no starter engage,a/c control panel not responding,no codes,fuses good we have no start,and a/c blower runs all the time
1999 Buick Regal LS 3.8L MIL Lamp on VIN: 2G4WB52KOX
Followed SI and said to replace o2. Replaced o2 and same condition. At cruise it switches but the code still sets at cruise. Any help would be great. Thank you. Trouble codes: P1133
1999 Cadillac Seville SLS 4.6L engine VIN: 1G1CHWU935
hey everyone i got this cadillac seville sts it will overheat after sitting and idling or driving. fans work.it has a slight coolant leak at the quick connect pipe on the water pump housing that runs to the coolant bottle. someone told me any leaks on these at...
2005 Cadillac CTS 3.6L Misfire, MIL Lamp on VIN: 1G6DP56785
came in with a skip and mil lamp on in modius scanner found a reset for fuel trim reset fuel trim mil light went off mis fire stopped road test twice car fine over weekend light back on and so is mis fire has anyone expierenced this problem? Trouble codes: 300 (random misfire), 302 (2 cyl misfire), 304 (cyl 4 misfire), 306 (cylinder 6 misfire)
1993 Chevrolet S10 2.8L Excessive Emissions VIN: 1GCCS19RXP
Won't go into closed loop at idle. tried a prom, tps, did find charcol canister hoses mixed up. Leaning toward that this thing won't go into closed loop at an idle. I found a comment on Archieves that said they will read between 2.50-3.0 % co and don't go into...
1995 Chevrolet K2500 6.5L No Start VIN: 1GCGK29F1S
Ok here we go. I'm not an old school chevy diesel tech, so I need some help. I have this 1995 Chevy diesel that will run for a couple of days just fine. The next morning it will not start. When it finally does start up it will run for a couple of days again ju...
1995 Chevrolet Astro 4.3L Poor Idle Quality, Surge, Cuts out, Stall VIN: 1DSHJCKVJH
I am at a lost i dont know what i am missing this van has been to at least two other shops it surges at idle when warm a complete tune up was done fuel injectors replaced checked egr for carbon or hang ups and still dose it i dont wana go in and throw parts so...
1996 Chevrolet Corvette 5.7L compressor VIN: 1G1YY22P7T
THANKS IN ADVANCED all vents work fine. when you push(auto),(floor/face)or(defrost) ac works but when you push just (floor) or just (face) the ac turns off (no power to the clutch). a/c request out of programmer go's away. the problem i have is i can't/don't k...
1999 Chevrolet K1500 Suburban 5.7L heater control actuator VIN: 3GNFK16R1X
Thanks up front for any help, Hopefully this is the last request on this vehicle. There is an electronic actuator (solenoid) that allows vacuum to the heater valve on the front system, it's only used on the suburban. There is no power to this connector A/C on ...
1999 Chevrolet Camaro Z28 5.7L trip odometer VIN: 2G1FP22G0X
Hello fello techs- We're working on a 99 Z/28. Occasionally for some unknown reason the digital trip odometer will reset itself to 0. We've noticed something funny when this happens. When you start the car, the speedo and tach needles will go full sweep, and ...
2003 Chevrolet Astro 4.3L No Start VIN: 1GMDNXX3B1
this astro van came in with a no start with code p1626. ive traced the code and now consider it to be from extended cranking time.the security light does not stay on or flash either. the vehicle has good spark and injector pulse, balance test showed injectors ... Trouble codes: P1626
2003 Chevrolet Tahoe LT 5.3L Hesitation, Stall VIN: 1GNEK13Z83
Thanks in advance for any help, this one is a nighmare, I have a Chevy Tahoe that intermittently, cuts out, or stalls. When it does there is a chime, the doors unlock and relock, the radio has a Ipod hook up and it kicks the Ipod off and turns back to radio, t...
2004 Chevrolet Blazer LS 4.3L Poor Fuel Economy VIN: 1GNCS13X84
customers complaint fuel mileage,went from 22 to 14 mpg did these things and still complaint there,this happened slowly...checked for leaks, none found...removed intake manifold to check pressure regulator and spider not leaking at this time...am at a loss..sp...
2005 Chevrolet Equinox LT 3.4L abs VIN: 2CNDL63F65
Hi Iatn, Problem child originally came in one month ago with code c0036 stored, I checked resistance of l/f wheel speed sensor and it was open. Replaced sensor and road tested, all was well until... vehicle back the next day code c0036, suspected problem with ...
1995 GMC Jimmy SL 4.3L No Start, Cuts out, Stall VIN: 1GKDT13W5S
morning all. thanks in advance for any help on this one. what i have here is a vehicle that has been a problem child for quite some time. recently it came in for a stall/poor idle condition. we did the normal tests(EGR, IAC, fuel press. etc). what we found was...
2000 Oldsmobile Intrigue GLS 3.5L cluster warning lights VIN: 1G3WX52H8Y
Vehicle came in with service vehicle soon, anti-lock, brace, trac off and pcs lights on. Scanned vehicle and there are no codes in any of the systems. The lights come and go , but most of the time they are all on. I know other gm's have problems with the ignit...
1988 Pontiac Fiero Sport 2.8L lock up VIN: 1G2PE1196J
This car originally came in for a die at stops. Found TCC solenoid sticking. Simple fix. Customer returned saying that it is not going into lock up. Test drove and verified. Checked power and gound to solenoid good. Replaced solenoid again, still same problem....
1994 Pontiac Grand Prix SE 3.1L temp gauge VIN: 1G2WJ52M4R
This grand Prix came in for coolant leak. Found intake leaking & radiator busted. Customer OK'd repairs & said that temp. gauge also wasn't working. When work was finished, we checked for gauge problem. Car has wire for sending unit but no sending unit & no pl...
2000 Saturn LW2 3.0L wiper motor/washer pump VIN: 1G8JW82R6Y
Customer complains that the wipers do not turn off with the multi-function switch. Also that the washer pump is inop. The system works fine at this time. Has anyone had trouble of this kind with this system and if so what did you come up with. Thanks for your ...

Fixes & Summaries for GM
Fix/Summary Answers
1985 Chevrolet S10 2.5L No Start VIN: 1GCCS14EXF
Thanks for all the replies. Most everyone thought I had relay problems so I replaced the relay,and I could see fuel spray at the injector but still had to crank the engine excessively to cold start the truck.I next tried a reman ecm with no improvement. The on...
1997 Chevrolet C2500 Cheyenne 5.7L brakes VIN: 1GCGC29R6V
The customer brought another used valve assembly and after replacing and bleeding it the problem is solved. It may have been a problem with the brake fluid. When I questioned him on it he told me that when he replaced the 1st master cylinder and control valve ...
1999 Chevrolet K1500 Suburban 5.7L condensor VIN: 3GNFK16R1X
Thank you all, I ended up letting the customer decide and putting the Delco on. The aftermarket came with an R12 schrader valve on the outlet tube so I believe the serpentine design was for the older R12 systems and the header or multi tube design for R134A. I...
2000 Chevrolet Malibu 3.1L MIL Lamp on VIN: JHMR458JK6
replaced ecm, p507b idle rpm high , would [not respond to automated tests, with genisyis scan tool, apparent bad ecm , thanks to all Trouble codes: P0507.
2002 Chevrolet Trailblazer LS 4.2L low power VIN: 1GNDT13S82
Sorry for the delay, I wanted some drive time before I was sure. A lot of people recommended exh. testing but I had done that 3 time already. the last post I got was about the ETC and that was were I was headed, just on instincts. It wasn't even that expensive...
2002 Chevrolet Suburban 2500 LS 8.1L blower motor VIN: 3GNGK26G62
Wow! Thank you very for your replied. Most of you say that blower motor relay is at fault. and a few with a/c control head. I inspected wirings and component that are related to a/c control system-all look normal. So between the blower relay and control head,...
2003 Chevrolet Venture LS 3.4L compressor VIN: 1GNDUO3E13
hey guys, I have not yet repaired this vehicle. But through a process of elimination, I have come to see that it is going to be a computer problem of some kind. I am not able to diagnose that yet as the customer has went on vacation with the vehicle. I will...
2003 Chevrolet Silverado 1500 4.3L compression VIN: 1GCEC14X93
1996 GMC G3500 Magnavan 5.7L a.c. VIN: 1GDHG31K1T
First above all I want to thank everyone for your replies.I chose to replace the condenser under the school bus as some of you suggested,I ordered 3 weeks ago, came in this a.m.After being hounded for 3 weeks by the maintenance director,Thank God school is out...
2004 GMC Sierra 2500 HD 6.0L 4wd hi VIN: 1GTGK23U84
wet clutch pack in transfer case burnt up, with truck on lift , in park, and with 4wd in low, with a pry bar i could turn the front drive shaft in 4wd low or 4wd high . did not know ths transfer case had a clutch pack, no to be confused with the vicous clutc...
2005 GMC Savana 3500 SLE 6.0L steering control VIN: 1GJHG39U65
We rechecked everything and went for some more test drives. The code never reset and the lights stayed off. Right now we are leaning towards the reflash. The customer had to have the vehicle for this week, but plans on having the reflash done if the problem pe...
2001 Oldsmobile Alero GL 2.4L battery VIN: 1G3NL52T81
well, we ended up replacing the BCM on this vehicle and the problem has been corrected. vehicle came back about a week later for a dead battery/no start condition. when i attempted to verify the condition what i found was a fully charged battery, all dash ligh...
1997 Pontiac Grand Prix GT 3.8L Poor Idle Quality, Surge, Cuts out, Stall VIN: 1G2WP12K1V
thanks for all the replies, it was a bad maf sensor. i got a new one and check all my reading and ran fine thanks again everyone. Trouble codes: P0102.
1995 Saturn SL1 1.9L MIL Lamp on VIN: 1G8ZH5280S
i want to thank u guys for the help== it was the perge soleniod ==but what happened was at the very beginning i swapped the ac relay with cooling fan relay and i didn't get the relay back in correctley i was off on two prongs and had an open cicurt boy did i c... Trouble codes: 12 (normal), 13 (0 2sensor), 26 (quad driver), 32 (egr).
1998 Saturn SC2 1.9L piston rings VIN: 1G82H1279W
Well, considering that any re-ring job may take many,many thousand miles to determine if the problem of oil consumption is actually solved, this is more/less a summary of the issue for many reasons. I have decided to go with another engine(salvage)as i had ...
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