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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 18, 2010
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Open Help Requests for GM
Help Request Answers
2003 Cadillac CTS 3.2L No Start, Poor Idle Quality VIN: 1G6DM57N63
Well if you are in this business long enough you get one that makes you rethink your choice of profession!;) after the above repairs & after delivery the customers 'remembers why they brought it in in the first place' (as if the glaring check engine light & in...
2005 Cadillac STS 3.6L no start VIN: 1G6DW67745
this car came to me no cranck no start. tesed and replaced battery. tested alt .it failed test. replaced alt. now car wont start any one seen this before on caddilac ?checked fuel pressure 57 psi cranking .
1995 Chevrolet K2500 5.7L Hesitation, Cuts out, BOGS OUT VIN: 1GTGK24K9S
This one is driving us nuts. After driving for about 30 minutes or so it starts cutting fuel down until it has no power and wants to stall. acording to mitchel it said replace the distributor so we did same thing. then we decided to reaplace the computer per m...
1995 Chevrolet K3500 5.7L 2-3 shift VIN: 1GBHK34KXS
trans shifts into reverse fine, goes into drive, first then second, then does not try to shift into 3rd, scanner shows it tries to command 3rd gear then commands 2nd(default?) and wont try to apply 3rd again. there are 2 sensors on the side of the trans and on...
2001 Chevrolet Tahoe 5.3L 4x4 VIN: 1GNEK13T01
We have a 2001 Tahoe here that we inspected last week and everything was fine, Then the customer called and said dashboard lights went crazy, gauges went nuts fuel gauge ect. and the service 4wd light came on and stayed on and is now inoperative. It had a co30...
2001 Chevrolet Tahoe 5.3L rear wiper motor VIN: 1GNEK13T01
Truck came in for slow moving rear wiper arm. We replace alot of these because of corrosion on shaft. Installed first new motor and when it left our shop it worked fine. Customer brought truck back in for wiper doing same thing as before. Replaced with second ...
2005 Chevrolet Trailblazer LS 4.2L Drivers door window and door lock VIN: 1GNDT13S95
Vehicle came into shop with body code U1000, U1305, U1016, U1064, U1160, U1161, U1162, U1096 COSE, Drivers window switch and door lock switch, inop all the time and will not operate any door. Intermittantly has a no start condition, no crank, loss of gauges, r...
2006 Chevrolet Monte Carlo SS 5.3L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2G1WL15C86
This is driving me crazy. After a short drive and usually if you accelerate a little harder than normal this starts missing real bad most of the miss fires are on #4 cylinder. The other cylinders have slight miss fires at times. After a short drive and I let i... Trouble codes: P0300 (miss fire detected), P0053 (b1s1 heater resistance range), P0134 (low o2 activity b1 sensor1)
2006 Chevrolet Impala LT 3.5L Surge, MIL Lamp on VIN: 2G1WB58N46
We have this car here at the shop, it started out as a surge on the highway, more of a chugle. We could experience the problem can't isolate the problem. This past weekend the vehicle stalled,restarted and then went it reduced power mode. When we get the car h... Trouble codes: P1516 (Throttle Actuator Control TAC Module Throttle Actuator Position Performance), P2101 (Throttle Actuator Position Performance)
2007 Chevrolet Suburban 1500 LT 5.3L ignition VIN: 3GNFK163X7
this gut literally drove car to car wash (next door) , washed exterior, got in to start and it would not. all lights light up on dash. battery and cables check good. fuse block and fused ignition circuits light up just fine. however no communication with any o...
2007 Chevrolet Trailblazer LT 4.2L abs VIN: 1GNDS13S67
vehicle intermittently & very randomly turns on the stabilitrak light - the light does not flash, but just stays on - it has never been on when the customer brought me the vehicle & has never come on while i test drove it - it always has codes co455 & c0244 st...
2002 GMC Envoy SLT 4.2L t-case VIN: 1GKDT13S62
Owner states that transfer case will be in neutral sometimes when he first starts out in morning.He must shift t-case into 4wd to get vehicle to move.This only happens when he has been driving in 2 wheel drive.It did it to us when we went to bring the truck in...
2004 GMC Yukon XL 1500 Denali 6.0L tpms VIN: 1GKFK66U84
Repeated ' check tire pressures', & 'service tire monitor' messages displayed on ip. After setting pressures to spec, relearning system & driving over 20mph the message returned. Pressure readings with a scanner showed lf tire & rt. rear tire in the teens. Tri...
2003 Oldsmobile Aurora 4.0L windows VIN: 1G3GS64CO1
GM guys I need help. I have a 2003 Olds Aurrora. All windows other than driver window are inop. I only have a valet key for said vehicle and am not sure if this is my fault. Master window switch and all motors check OK. Please assist. Thanks
2000 Pontiac Bonneville SSEi 3.8L blend doors VIN: 1G2HZ5418Y
Hi guys. Customer came in with complaint of no heat. This car has dual zone climate control. Driver side is stuck on full cold, does not change at all. Pass side blows hot and is stuck there, will not switch to cold. My OTC Genysis cannot access ATC system tha...
2003 Pontiac Grand Am GT 3.4L ign. switch VIN: 1G2NW12EX3
This car came in with a intermittent no crank. scan for codes, found security code stored, diag. to problem with lock and tumbler. we replaced lock and tumbler and performed security relearn. now the starter will engage in ON position but will not start until ...
2009 Pontiac Vibe AWD 2.4L abs light VIN: 5Y2SM67079
So I have this vehicle with a list of codes u0073 control module communication bus off u0123 lost communication with yaw rate sensor module u0124 lost communication with lat. acc. sensor module u0126 lost communication with steering angle sensor module. We use...

Fixes & Summaries for GM
Fix/Summary Answers
2002 Buick LeSabre Limited 3.8L Suspension VIN: 1G4HR5K72U
Hi, I got some very good advice from all 6 replies . I did not know very much about this problem and I feel like I have learned a lot. I think it is the steering sensor. The owner does not want to spend any more on it at this time. It shows the display only ab...
1997 Chevrolet K1500 Silverado 5.0L hyd. lifters VIN: 1GECK14M0V
Thank you for the responses to my post and many thanks to Keith [...] for the extra help that he gave me. It turned out to be a plugged oil galley near the top of the engine. I insterted a wire in the rear hole in the dist. boreto clean iy out, then made up...
2001 Chevrolet Impala 3.4L Unknown VIN: 2G1WF52E81
thank you all for your replies they have been very helpful. i checked the feul volume and was not up to par. i changed the feul pump and it drove better but still felt as though the tranny was slipping. i brought a good friend of mind to the shop to take a loo...
2005 Chevrolet Suburban 1500 LT 5.3L heated seats VIN: 3GNFK16Z45
Wanted to get this closed in time-the owner is trying to schedule back in to finish repairs-after reading all the replies and speaking with the owner again I am going to take the drivers seat apart and check the heater elements even though they pass the resist...
2007 Chevrolet Silverado 1500 Classic WT 5.3L MIL Lamp on VIN: 1GC5C1M0Z7
Hey everybody, First off let me apologize for taking so long but you know how us state workers are. I really didn't find anything wrong with this vehicle. I cleaned the throttle bore,cleaned the MAF, checked for vacuum leaks etc. After I did all this I went ba... Trouble codes: P0121 (TP1/APP1 circuit).
2006 GMC Sierra 2500 HD SLE 6.0L MIL Lamp on VIN: 1GTHK29U76
Hi Everyone, I want to thank all of you who posted help on this one. The customer has yet to return, he has not noticed a drop in performance or fuel economy, so he is not that concerned with fixing it, so when he gets time to be able to drop it off he will, ... Trouble codes: P0300 (Multi-cylinder mis-fire).
1995 Saturn SC2 1.9L Stall VIN: 1G8ZJ5274S
Thanks to the great techs at IATN. It's nice to get that confirmation about a repair. It was the IAC. It was getting stuck, especially when cold. As soon as intake heated up, the IAC would free up and start working. Replaced with new part, cleaned throttle bod...
2002 Saturn Vue 3.0L Misfire, MIL Lamp on VIN: 5GZCZ63B42
this one was realy weird found that if we disconnected both battery cbles and touched them together to drain ecm then reconnected them the missfire went away. Test drove vechile and all was fine released vechile to customer and has not returned Trouble codes: P0300, P0302, P0304, P0306, P0481.
2004 Saturn Ion-1 2.2L No Start
thanks for all your help, i am sure its the switch but the lady wants to live with the problem so i cant conferm a fix, if she changes her mind i will repost,thanks again. Trouble codes: B2960, B3033.
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