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Prev Professional Automotive Repair Technical Discussions for May 24, 2006
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1993 Buick Skylark Custom 3.3L Poor Idle Quality, MIL Lamp on VIN: 1G4NM54NOP
We just recieved this buick into our shop yesterday for a mil light and rough running. Check vehicle and found that vehicle had recent tune up, pulled codes had code 26 and code for tps. checked the tps and voltage was not changing. Checked for a misfire and f... Trouble codes: 26
2006 Cadillac DTS 4.6L air bag VIN: 1G6KD57Y56
hello techs, this 2006 dts from body shop had air bag deployment.we have tech2 and tis 2000.i believe i need to reprogram sdm or at least align it with gateway to can.i spoke with vetronix and they said you may need special adapter.also suggested to have compl...
2000 Chevrolet Cavalier 2.2L No Start, Cuts out VIN: 1G1JC5243Y
Hello forum members, This vehicle was towed in last night, customer states car "quit running while cruising on the freeway" When I arrived here to move the vehicle it started right up. I havn't drove the vehicle as of yet for fear of getting stranded. There ...
2001 Chevrolet Express 1500 4.3L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GCEG15W01
well then, got one that likes my shop. came in running horrible. on test drive massive misfire around 1/4-1/2 throttle especially and began stalling on the way back. got it into shop cut it off hasnt started since. tune up was done last october full set of ev... Trouble codes: P0300, P0200, P0420, P1381, P0128
2003 Chevrolet Trailblazer LS 4.2L Hesitation VIN: 1GKDT13S13
Hey guys,this is the booses accountants vehicle.Only after sitting overnight and driving within the first mile,he claims it falls on its face.Major hesitation to the point he has to play with the accelerator to clear it out.After that there is no problem for t...
2003 Chevrolet Express 1500 5.3L rack/pinion VIN: 1GNFG15T63
Just to let everyone know that I got two a/c delco part# 36-16555 rebuilt r/p and both have the same problem, the input shaft is clocked wrong and it puts the steering wheel at 3 o'clock and there is not enough threads on the right side tie rod end to adjust i...
2000 GMC Savana 2500 5.7L high idle
Vehicle has an intermittent high idle problem. Does not happen at idle. When the vehicle is going down the road.I looked at the failure records and didn't seen anything unusual. The only thing was the intergrater was at 135,TPS at 9% going 36 mph. Smoked the i... Trouble codes: P0507, P1509
2002 GMC Savana 3500 5.7L starter VIN: 1GTHG35R82
we have a 2002 gmc savana that"s giving us fits.problem is we are constantly blowing the 40 amp fuse that feeds starter relay.we replaced starter (ac delco)'replaced nuetral safety switch.fuse blows EVEN if i disconnect starter relay & turn key to run position...
2000 Oldsmobile Silhouette GLS 3.4L cooling system VIN: 1GHDX03E8Y
Hi Fellow Techs. After doing the intake, we are having a problem bleeding air from this cooling system. It will not overheat in the shop, cooling fan come on, runs pretty normal temps. But when we gave it to the customer, She said after a run down the freeway ...
1997 Pontiac Grand Prix SE 3.8L shift lock, ignition switch VIN: 1G2WJ52K0V
This Grandprix acts up about twice a week. The shifter will not come out of park, and the key will not return to the lock position for removal. I tried putting a brake light switch in but it didn't help. Are there any common problems with these console shifter...
2001 Pontiac Grand Prix GT 3.8L Very High Idle VIN: 1G2WP52K11
Vehicle was towed in with the customer stating that the vehicle would accel on its own. She had the brakes smoking from trying to hold the vehicle back. We have had no symptoms so far and the vehicle is operating correctly. Any suggestions and help would be gr...
2001 Pontiac Sunfire SE 2.2L front end VIN: 1G2NE52T8X
This sunfire has been nothing but problems i really hope you guy's can help.Only when you are going slow and turning do we get this noise even in reverse it really sound like a tock just like someone is under with a ball pean hammer sometimes one sometimes two...

Fixes & Summaries for GM
Fix/Summary Answers
1987 Buick Regal 3.8L Brakes VIN: IG4GJ1174H
Hey guys thanks again. replaced accumulator ball & all is well. could not get accumulator from G.M. no longer available had to get one fron internet. thanks for your help.
1985 Chevrolet El Camino 4.3L temp gauge VIN: 3GCCW80Z6F
Hi Everyone, Thanks to all of you who helped. It was located in the side of the right head, near the center. It had a bunch of hoses and wires above it that hid it from view. When the single wire is grounded the gauge should go to max. This one didn't so I pul...
1997 Chevrolet K1500 Cheyenne 5.7L Hesitation, Surge, Misfire VIN: 2GCEK19R4V
Thanks so much to all that have replied. I have been able to get my hands on the 'Bow-Tie' to check it over. I recieved so many good replies. So many suggested checking fuel pressure, for cracked plugs, EGR porblems. There were several replies concerning ECM a...
2001 Chevrolet Express 2500 5.7L wipers/blower/abs VIN: 1GCGG25R91
Hello all, this thing is fixed. Thanks much to all that replied. It ended up being a loose connection on the IGN B socket in the underhood fuse box. I think Randy from Kansas was on the right track when he said to check for power on the fuses. I just visually ...
2003 GMC Sierra 3500 6.0L Poor Idle Quality, hard start VIN: 1GDJK34U63
Good morning, I have sent this truck to the General for their opinion. It came back with no problem found and a $100.00 bill. After being appreciative of that fact, I figured I have to find the problem. I went through all my steps again from scratch. I dead ... Trouble codes: P0131 (o2 sensor b1s1), P0137 (o2 b1s2), P0151 (o2 b2s2), P0157 (o2 b2s2).
1996 Oldsmobile Cutlass Ciera 3.1L No Start VIN: 1G3AJ55MST
I checked for ac wave on 7x crank signal it was at 1.5 volts. The speck is 2.0 . also checked for square wave on white at module . I had no square wave . Replaced the 7x crank senser this fixed the problem. Thanks for your help.
2003 Oldsmobile Alero GL 3.4L No Start VIN: 1G3NL52E43
Well it's fixed!!We rescanned all the modules again and this time it came up with a b1374-device ignition circuit open-tryed clearing-would not clear-went thru trouble tree and found an open at the underhood fuse panel for this circuit,this circuit is one of t...
1996 Pontiac Grand Am GT 2.4L No Start, Starts then Stalls VIN: 1G2NW12T2T
HI Y'ALL !!! I'm sorry it took so long. I never was able to get this car started. As many of you noted, the passlock system should reset (re-learn) any new passlock code. This never happened. I did get 2 instrument clusters from wrecking yard. One of them on... Trouble codes: P1629.
2000 Pontiac Sunfire GT 2.4L Poor Idle Quality, Idles about 1200 VIN: 4G2JB32T2Y
Jeff you hit it right on the head, the TPS was slightly skewed staying at about 5%, replaced the sensor and the IAC valve for the carbon buildup. Decarboned the engine with BG chemicals and all is fine. Thank you very much for your replies. Lou [...]
1999 Saturn SL2 1.9L Hesitation, only on slight accel VIN: 1G8ZJ5279X
thanks for the help 1 & 4 plug wires swaped and runs like a champ dont know what i was thinking but most all of you must have seen or done this before ill remember this one thanks again don
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