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Professional Automotive Repair Technical Discussions for October 29, 2010 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1991 Buick Park Avenue 3.8L starter interupt relay VIN: 1G4CW53L4M Hello everyone and thanks in advance. I am need to locate the starter interupt relay. This vehicle will not start and I've verified that there is no voltage to the transaxle position switch. And the 10 amp fuse between the ignition switch and the starter inter... |
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| 1997 Buick Skylark Custom 3.1L anti theft VIN: 1G4NJ52T7V car came in start then stalls theft system set.. customer said she had the problem appx 3 years ago and they replaced the lock key and tumbler assy and worked good for the 3 years.. now problem is reaccurring..we could not duplicate it.. i disconnected the con... |
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| 2002 Cadillac Escalade EXT 6.0L assist VIN: 3GYEK63N52 hello all. have this caddy,and when your pulling into a parking spot then turn then straighten wheel it momentarily losses assist in steering wheel very intermitten. have replace hydroboost cause it was leaking, and replaced pump. still having issue. any help ... |
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| 2004 Cadillac SRX 3.6L Traction Control VIN: 1GYEE63754 Vehicle came to me for traction control enabled message coming up speratically in message center. Drove the vehicle and drove the vehicle never happened for me. A day or 2 later the guy came back and said it was acting up, went for a ride with him and sure eno... |
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| 1992 Chevrolet K1500 Silverado 5.7L Hesitation, Cuts out, Stall VIN: 1GTEK14H9N Towed in Starts and idle fine. Tested fuel pump within specs. Road tested stalled. While on the road and no start cranked had blue spark. Replaced fuel pump with ac delco fuel pump and still does the same. Checked egr-okay Where to look? Thanks in advance for ... |
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| 1994 Chevrolet Caprice Classic 4.3L No Start VIN: 1G1BL52W5R not sure about this system, i pulled up a wiring diagram for this vehicle and checked the red wire for power with key on. there is power. i assume the distributor that sits behind the water pump is my problem but not for sure. please help with any suggestions. |
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| 1998 Chevrolet K1500 Silverado 5.7L 2-3 shift dear gm techs I rebuilt this 4l60e due to no 2-3 or 3-4 shift, however I have the same problem. I airchecked the transmission before reinstallation and found no problems. Could the valve body affect this? or perhaps the pressure sensor? (it has no readings in... |
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| 1999 Chevrolet Tracker 2.0L MIL Lamp on VIN: 2CNBJ13C6X This Tracker came in with the check engine light on. Scanned ecm and found code P0400 in memory. This is an Egr flow code. Both 12v power supplys to Egr are good, the control ciruits work with the ECM - I tested with a labscope to check the voltage. I do not k... Trouble codes: P0400 (egr) |
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| 2000 Chevrolet Tahoe 5.7L No Start VIN: 1GNEK13R6Y Installed new Delphi pump, due to intermittent starting failure with no fuel pressure. After installation, pump primes with key up and primes after key down again. Pump DOES NOT always prime with key up. Checked ohms on grounds, checked out fine... Main concer... |
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| 2003 Chevrolet Blazer ZR2 4.3L front VIN: 1GNCT18X23 when engage front axle it will grind but wont ingage light stays on all the time showing four wheel drive is engaged. i have changed 4 wheel drive switch and encoder motor vac switch and gear and washer kit in front axle . it will engage some times. but lite s... |
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| 2004 Chevrolet Silverado 2500 HD LT 6.6L Oil usage VIN: 1GCHK23114 Customer has been traveling across country and developed a severe oil leak on the passenger side of the engine so bad that he has been down 6 quarts twice. I cleaned off engine and ran on hoist to look for leak. I see blow by vapor comming from the PCV vent tu... |
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| 2007 Chevrolet Malibu Maxx LT 3.5L battery VIN: 1G1ZT68N87 car came in with a draw about three weeks ago and while checking for the cause it just went a way. we did let it sit for about an hour to make sure the modules went to sleep.the car is back with the same draw. this time we found if you pull the bcm fuse #20 it... |
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| 2006 GMC Envoy SLT 4.2L block heater VIN: 1GKDT13S76 third block heater is now burned out again. is GM having a poor quality heater for this car. do i go with a after market heater and what brand |
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| 2003 Saturn Vue 3.0L Poor Idle Quality, Stall, Misfire VIN: 5GZCZ63B03 We just replaced the front bank head gasket on this vue for and external coolant leak. After engine was reassymbled it ran very poorly and set misfire faults for every cylinder on the front bank. Upon performing a compression test found 0psi is 2 holes and 80p... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2004 Cadillac CTS 3.2L Clutch VIN: 1G6DM57N54 Not a lot of help on this one, but those who suggested hydraulic problem were right. I flushed the clutch system and the pedal came back to normal. I didn't see any signs of fluid leakage. The customer wants to leave it alone for now and see if the pedal deter... |
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| 2005 Chevrolet Silverado 2500 HD 6.0L Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GCH1629VX well im not calling this one fixed. the customer has left and driven 1k miles without the light returning and his milage has jumped from 8mpg to 10.5mpg he is ok with it for now. still cant exsplain a simple misfire and that buggs me exspecially when the vehic... Trouble codes: P0300. |
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| 2000 GMC K3500 Sierra SL 7.4L Erratic fuel guage a VIN: 1GDJK34JXY I really hate to admit defeat especially on autos, However this fuel system has stumped myself and another. All of the wiring is correct and shows proper voltage and grounds. The sending units and balance modules are new as is the PCM and fuel relays. There we... |
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| 2002 Oldsmobile Aurora 4.0L Poor Idle Quality, Surge, Stall VIN: 1G3GS64C12 thanks for the replies. I love this place. I have gotten a few people to join. anyway the boot/gasket that goes between the intake and t/b was the fix, bottom firewall side had a tear in it about an inch long. part#[...] Trouble codes: 171 (right bank lean), 174 (left bank lean). |
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