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Prev Professional Automotive Repair Technical Discussions for May 4, 2010
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Open Help Requests for GM
Help Request Answers
1989 Buick Century Custom 3.3L Cuts out, Stall VIN: 1G4AH51N7K
Hi everybody This buick was driven into the shop by the new owner and on its way to the shop it started to run rough and hard to accelerate and now he cannot drive it away. Car was maintained by another shop and has all records of work done over the years. ...
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2000 Buick LeSabre Custom 3.8L battery light, oil pressure light VIN: 1G4HP54KY4
greetings, working with a 2000 lesabre that has no codes and we are unable to get the oil and battery light to come on and off while driving. customer says while she is driving lesabre the oil and battery lights will come on, and after a 10 minute ride they tu...
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2004 Buick Century Limited 3.1L No Start VIN: 2G4WS55J74
Hello Group, This Century came in from a collision shop with a complaint of intermittent no start. When the key is turned to position 2, security and check engine lights illuminate properly and fuel pump runs for about two seconds which seems correct. Turn to... Trouble codes: P0336 (CKP circuit fault history code), P0650 (MIL Control Circuit history code), B2957 (Security sensor data circuit low)
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2004 Cadillac SRX 3.6L steering VIN: 1GYDE63784
Vehicle came in for lack of assist in power steering.Found pump and rack leaking. Replaced pump and and o rings at rack per tsb.Flushed system with oe fluid.Monitored ves actuator; minor glitches seen. Removed ves actuator, filter screen was mostly deteriorate...
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1990 Chevrolet C1500 Cheyenne 5.0L Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 1GCDC14H3L
Truck was in a month ago with the same problem and we replaced the ECM and ignition module to no effect. Our guy read the posts on IATN and decided that the magnets or shaft on distributor were bad and we recommended a new distributor. the owner declined this ... Trouble codes: 42 (Spark control)
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1996 Chevrolet C2500 Suburban 7.4L Hesitation, Surge, Misfire VIN: 1GNGK26J9T
Scan tool data looks ok. Intermittently at a stop it will misfire & or unstable idle. At cruse most of the time it feels like the cruse is hunting, surgeing, & or momantary buck. At medium to hard accel it is ok, at floored it is ok. Even though the scan tool ...
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1999 Chevrolet K3500 7.4L Differential VIN: 1GCHK39J4X
hi guys i am rebuilding the rear end and i cant find anything on what the preload should be on the pinion bearings. its has new inner and outer bearings. if anyone knows please let me know. THANKS!
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1999 Chevrolet S10 2.2L lo beam lights VIN: 1GCCS1446X
Hi Y'all!! I have this 99 s-10 that the low beam headlights dont work. We did replace 1 bulb and checked the power to fuses. That seemed OK! That is when I replaced the combination switch. The flash to pass and the hi beams and tail lights all work. There are ...
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2001 Chevrolet Monte Carlo LS 3.4L Arching VIN: 2G1WW12E51
Ok this is a strange one. Customer brought car and said him and his buddy changed the front crank seal. He said he is complaining of a arching off of the crank sensor. I was like yea ok and sure enough its like a bad ignition wire arching. So i figured he nick...
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2005 Chevrolet Silverado 3500 LS 6.6L temperature VIN: 1GCHK33295
I was wondering what temp is considered normal on the Allison automatics when running empty and what is considered the max when pulling a load? I have this truck that wants to run trans temps in excess of 200 degrees when pulling only small loads. Is this norm...
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2005 Chevrolet Silverado 2500 HD 6.6L Cooling Systems VIN: 1GCHK23255
Hi,I have a6.6 in my shop loses about half gallon antifreeze in 2 weeks pressure tested couldnt find anything and passed hc test. Can anybody tell me were eles to look thanks for any help.
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2006 Chevrolet Trailblazer LS 4.2L Lighting VIN: 1GNDT13506
Hi guys, We have days in this one now. Key won't turn off without pushing button under ignition switch. Also won't go into gear. We can get it to start about 50% of the time. When it does start, sometimes the theft light comes on and other times the battery li...
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2007 GMC Sierra 2500 HD SLE 6.0L computer VIN: 1GTHC23U17
Truck came in customer requested battery.We intstalled a new battery,engine light comes on,runs rough and none of scanners will comunicate,Truck ran fine before.Is there a relearn procedure? I looked all over cant find any.
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1992 Pontiac Bonneville SE 3.8L No Start VIN: 1G2HX53L8N
This car came in as a no start. Ignition system is functioning normally. The vehicle attempts to start as it cranks, but doesn't. The injectors pulse three times while cranking and then the control signal goes to steady battery voltage on the scope as it conti...
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2006 Pontiac Grand Prix 3.8L Surge, Cuts out VIN: 2G2WP55246
Car came in with a code p0068 and p0101 tac(throttle body) was replaced due to limp mode, car left running great, then returned 2 days later with code p0507 and surging at idle Trouble codes: P0507
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2000 Saturn LS2 3.0L No Start, Hard Start/Noise VIN: 1G8JW52R6Y
Came in on the hook, customer stated it just died CEL had never been on before. Found code P0343 and in the process of checking the CPS readings on the Solus Pro the engine br1efly started with a loud clanging banging noise. Engine will occasionally start, run... Trouble codes: P0343 (CPS Resynch), P0300 (Missfire)
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Fixes & Summaries for GM
Fix/Summary Answers
1988 Buick Regal Limited 2.8L Stall VIN: 2G4WD14W0J
THANK YOU TO ALL WHO GAVE THEIR EXPERIENC AND KNOWLAGE. I ENDED UP HAVING 2 SEPERATE PROBLEM. I FIXED THYE STALLING WITH REPLACEMENT OF THE CRANK SENSOR, BUT STILL HAD A CHUGGLE. FINALLY AFTWER ABOUT 4 DAYS I FIGURED OUT THE EGR WAS THE CULPRIT. REPLACED THAT ...
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1995 Buick LeSabre Limited 3.8L Horn VIN: 1G4HR5219S
Thanks for the help. Indeed the horn was shorted to ground through the airbag.
18
1993 Cadillac Seville 4.9L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1G6KS52B5P
Sorry it took me so long to close this, I actually fixed it the same day I posted it up. I ended up scoping the injectors and fiqured out the 2,8,3, and 6 were not working. I ended up tracing the power source which was a red wire. It was a bad connection at th...
9
1991 Chevrolet S10 Blazer 4.3L Poor Idle Quality, High oil pressure VIN: 1GNCS18Z7M
Ok guys, thanks for all your help. Turns out that the oil was sludge, and the sending unit was bad. After an oil change and a new sending unit the pressure came back to normal. As for the idle quality, a set of plugs and wires and a fixed vacuum took care of t...
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1999 Chevrolet Cavalier 2.2L instrument cluster VIN: 1G1JC1244X
thanks to all who respondes to my help request. I am in the prosess of checking the underhood wireing, have checked the harness that is fastened to the transaxle,and the harness that goes to the injectors. I am inspecting this in sections, and plan to check th...
12
2002 Chevrolet Silverado 3500 6.6L Turn Signal Indicators VIN: 1GCJC33192
Have not been able to get vehicle back yet, all help offered is greatly appreciated and will be used when this traveling man sits still for a while. Thanks so much for your responses, will update when fixed.
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2002 Chevrolet Silverado 2500 HD 8.1L Stall VIN: 1KDFGTEKD1
What a pain in the butt. Thank you so much for all of your help. I let it soak overnite with wd40. I finally got it to move then the top broke off. I finally grabbed the 3 little metal tabs with small vice grips. They finally stopped pulling up and grabbed...
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2003 Chevrolet Venture Warner Bros. 3.4L hvac control head VIN: 1GNDX13E6Y
The control head was the problem. It started acting up I switched the control head and the other one didnt do it, A new one was $500 so we went used. Thanks guys
3
2007 Chevrolet Silverado 2500 HD Classic WT 6.0L 1-2 shift VIN: 1GCHK24U77
MY CUSTOMER CONTACTED HIS DEALER AND AFTER 2 1/2 WEEKS THEY WERE ABLE TO FIX THIS TRUCK. THEY STATED THAT THE TORQUE CONVERTER CLUTCHS HAD WENT OUT CAUSING THE WHOLE PROBLEM. HE WANTED AN NEW TRANS BUT THE DEALER WOULD NOT STAND FOR IT, THEY CLAIMED TO REBUILD...
11
1993 GMC C1500 Sierra SLE 4.3L stalls with a/c on VIN: 1GTDC14Z0P
customer took veh. to the local dealer, who called me, I told them all the suggestion I got from all of you, thanks, they had already tried a ecm, iac,(we did an iac) I ask them to let me know what the fix was, no reply yet. thanks again to all .
17
1995 Pontiac Grand Prix GTP 3.4L power steering VIN: 1G2WJ12X8S
O.k. fixed it. The problem was not determined untill I recieved anouther used pressure valve. The o-rings on the pressure valve can be installed in correctly. multiple grooves. I installed it the way I removed it and did not relize the error. with the oring in...
1
2008 Pontiac Vibe 1.8L Cuts out VIN: 5Y2SL65848
Well guys I got alot of useful info. Thanks to a couple of techs that directed me into the ECM direction my supervisor found that the ECM is in fact crapping out when it wants to. We decided to have the customer take the car to the dealer before we own it. S...
5
2003 Saturn LW300 3.0L Steering Rack ? VIN: 1G8JW84R93
Hello, we fixed the steering problem. Thanks for all the great ideas. Several people suggested the steering angle sensor being a problem after the alignment and needed reset,but our system had no electronic controls just basic power steering. Others suggested ...
10
2006 Saturn Vue 3.5L Mechanical VIN: 5GZCZ53476
Thanks for your replies. Only special tool required was the wrench to hold the crankshaft pulley. Other than that no special tools required. However Alldata's information leaves a lot to be desired.Ended up looking up a Honda to get more information on cam mar...
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