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Prev Professional Automotive Repair Technical Discussions for April 1, 2010
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1991 Buick Park Avenue 3.8L heighth control poping noise VIN: 1G4EW53L6M
this buick will make a poping or clunking noise when you lightly push down on the rear bumper easy to duplicate.greased the rear sway bar bushings and noise seemed to disapear for about a month but them came back. also owner states that when he is sitting in v...
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2004 Cadillac CTS 3.6L No Start VIN: 1G6DM57754
I know I have an issue with the siphon part of the pump and now have ample fuel and pressure however it starts and dies after 3 seconds like an antitheft system. I have no codes,I have a Tech2 and monitored the various antitheft and fuel management sections bu...
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2008 Cadillac DTS 4.6L Accessories VIN: 1234567887
I do not have a broken car I want help with at this time. I am looking to get a new scan tool. I am today hoping for some advice on what one to get. I have no budget I just want a great scan tool! any advice and comments would be help full thank you guys.
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1994 Chevrolet Blazer Silverado 5.7L MIL Lamp on VIN: 1GNEK18K7R
Good Day everyone. I have what should be a slam dunk but I am the one getting slammed! The Blazer came in for loading up one start up and CEL. Pull codes and get 33 map high volts and rich code(didn't write it down).Scan data KOEO for map is 5.1, same as refer... Trouble codes: 33 (map high voltage)
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1994 Chevrolet K2500 Suburban 6.5L Poor Idle Quality, Misfire VIN: 1GNGK26F3R
Hello, this truck runs rouph somtimes at idle acts like its an injector but it pops through the intake maybe and shakes. tryed to do cyl cancel by cracking the injector when its doing it but doesnt change the condition. off idle it stops. mitchel and alldata a... Trouble codes: 000
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1998 Chevrolet Blazer LS 4.3L Cooling Systems VIN: 1GNCT18WOW
pressurized cooling system-coolant dripping from inspection hole in bottom of trans bellhousing-have to assume it is freeze plug leaking-but there are various other leaks-i want to pull engine only and leave trans and transfer case in place as this is a 4wd ve...
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2002 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GCEK14T52
We have 2 of these Silverados in here right now. Both came in with MIL on and code P0332 set. I replaced sensors in both vehicles per TSB. Both trucks have returned with same code set. The code sets intermittently. Sometimes the code will reset in the first mi... Trouble codes: P0332 (Knock sensor 2 circuit)
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2003 Chevrolet Impala 3.4L No Start, Cuts out, Stall VIN: 2003CHEVRO
The customer states the vehicle stalls at random when warming up usually from a cold start. There are no codes or other clues. The vehicle will stall out totally or just hesitate. Road tested with customer and scanner. Nothing looks out of sorts. The road went...
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2004 Chevrolet Silverado 2500 HD 6.0L All lights pulsate off idle VIN: 1GCHK23U54
Vehicle had 5 codes: P0101 MAF, P0171 Lean B1, P0174 Lean B2, P0300 Misfire, P1516 Elec Throt Mod VS Throt Position Performance. I noticed all lights of vehicle pulsate from dim to bright when above idle. I did all the tests that I have listed below. The char...
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2005 Chevrolet Aveo LT 1.6L Poor Idle Quality, Surge, MIL Lamp on, Idle flactuates VIN: KL1TG52615
Vehicle came in with busted timing belt and shewed up idler pulley, Obviously, all the valve bent on the cylinder head. After installing a good used cylinder head (had about 70K miles on the used cyl.head), new timing kit (with tensioner and idler pulley, and... Trouble codes: P0068 (Low Map Vacuum Signal), P0300 (Random Engine Cylinder Missfire), CY1#1, CY1#2, CY1#3, CY1#4
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2007 Chevrolet Uplander LS 3.9L MIL Lamp on VIN: 1GNDV23W77
This Uplander has a P0172 System Rich code. No apparent running issues. Fuel trims are as follows ST = -4 to 4, LT = -17 to -23. Front O2 readings are good. Rear readings are anywhere from 600 to 800 mV. Fuel compostion is lo. Unfortunately, my info on this ne... Trouble codes: P0172 (System Rich)
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2008 Chevrolet Express 2500 6.6L Starting VIN: 1234556667
I belive i have a pass lock lock up i have codes p062f and p0633 one is long term memory and the other is pass lock not learned when i go to crank nothing i can crank the van from the relay but it will not start i know i cant do the program but i dont want to ...
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2004 Hummer H2 6.0L Steering & Brake VIN: 5GRGN23U04
Hello Everyone. This is a 2004 H2 which has been converted to a (very long) stretch limousine (with additional alternator and belt modification). Vehicle was brought in with what we believed to be a defective power steering pump. Against our advice, owner deci...
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1999 Pontiac Grand Am SE 3.4L ittermittent no start no door or trunk locks oper VIN: 1G2NE52EOX
Car came in for intermittent no start 2 weeks ago could not get it to act up,codes were 1626 & 1610 advised customer key cyl. was most common problem she authorized it. Car towed in one week later this time i can create the intermittent the door locks trunk i...
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2004 Pontiac Sunfire SE 2.2L Poor Idle Quality, Back fires VIN: 1G2JB12F24
Hello IATN. I have a 2004 Pontiac Sunfire that is having a intermittent Hard start/ Rough Idle/ Back fire and has black smoke out the tail pipe. First off I would like to add that he has taken this car to another shop for the same issue and they sold him a fue...
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2004 Saturn Vue 2.2L Flashing headlight VIN: 56ZCZ23DX4
Car came in as a no start, Jumped and started right up, but was not charging. Replaced Alternator and Charged Battery. Everything ok... until I got the call. The customer said the car drove fine for about 1/2 hr. then died, restarted ok, drove 15 min died agai...
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Fixes & Summaries for GM
Fix/Summary Answers
2003 Buick Park Avenue 3.8L turn signal VIN: 1G4CW54K63
THIS CAR IS FIXED. I FOUND THE FLASHER TUCKED UP IN UNDER THE DASH NEXT TO STEERING COLUME. HAD TO REMOVE SEVERAL OTHER ITEMS TO GET TO IT. ORDERED NEW ONE FROM GM MY LOCAL PARTS DEALER WAS UNABLE TO GET IT. EVERYTHING WORKS GREAT NOW THANKS EVERYONE
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1995 Chevrolet K3500 Silverado 6.5L Unknown VIN: 1GTHK39F5S
Hi , Iam sorry for the long time I took to post the fix for this truck. I want to say thanks to all 15 who took the time to reply to this post. Due some illness and being short handed I just got enough time this week to spend some more time on it to figur...
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2005 Chevrolet Cobalt LT 2.2L overheating VIN: 1G1AK52F35
CUSTOMER WENT WITH A NEW ENGINE...PROBLEM SOLVED. I DO THANK EVERYONE FOR THE HELP THOUGH
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2002 GMC Yukon Denali 6.0L steering box VIN: 1GKFK66U02
Thanks guys, we flushed the system before and after the steering box replacement. The new box fixed the problem. Thanks again, Kenny [...]
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2001 Saturn SL2 1.9L Surge, Cuts out, Stall, Misfire VIN: 1G82K52771
Hey everybody sorry about the delay but I was waiting for the car to return.The last I saw,it left on a quest to find a saturn dealer to help figure out the problem. could be a while since those dealers are kinda scarce now. I want to thank the 12 who replied... Trouble codes: P0300 (random missfire), P0401 (EGR flow), P0410 (secondary air management), P1599 (stall detected).
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