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Professional Automotive Repair Technical Discussions for September 22, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2005 Cadillac CTS 3.6L ujoint VIN: 1G6DP56705 Easy help request, I hate to ask such a small question but this is not the first gm vehicle I have where the ujoint is bad but it has a ujoint that is pressed and stamped in. Does anybody know if somebody makes a replacement ujoint for these gm ujoints that ar... |
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| 1996 Chevrolet C3500 7.4L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy Vortec 454, Chassis Cab with 10.5K lb GVWR. Engine starts and runs poorly yet. Bank 1 LTFT has slowly risen to +25% while Bank 2 LTFT cut back to -7%. STFT is B1+13% and B2-3%. IAC is somewhere in the 140 zone. Simple vacuum gauge hooked up to the PCV port pul... |
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| 1997 Chevrolet C1500 Cheyenne 4.3L No Start VIN: 2GCEC19W2V This is my fathers truck so Im trying to pin point the issue exactly. Got an intermittent long cranking condition after it sits over night or for an extended period of time. My first thought was fuel pump so I grabbed my pressure guage and hooked it up. 55 PSI... |
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| 2000 Chevrolet Blazer LS 4.3L Poor Idle Quality, Hesitation, Surge, Stall, MIL Lamp on VIN: 1GNCT18WXY Hello everyone, We have another 'doozy' and would appreciate your feedback; customer came back in to shop after replacing the oxygen sensor, wires and plugs with a intermittent surge, rough idle complaint. Found the oil pressure sending unit to be leaking oi... Trouble codes: P0171 (Fuel system lean), P0420 (Catalytic system efficiency) |
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| 2001 Chevrolet Cavalier 2.2L dricve nice VIN: 3G1JC524X1 Notice continues monitor did not run on this car, I though file was corrupt so I flash pcm. I was able to heater,cat and evap but 02 dodnt run at all. I must drove this car about 50 mph. How can I run 02 monitor on cng/gas engine? Is their 2 computer on this c... |
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| 2003 Chevrolet Silverado 1500 4.8L Hesitation, Cuts out VIN: 2GCEC19V93 Hi fellow techs, I come to you again for help, you've been great to me in the past. I have one here that has been messing with me, I think between the interruptions, phones, and all the other vehicles I have here I can't get my head straight. This vehicle came... |
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| 2004 Chevrolet Silverado 2500 HD 6.6L Excessive Emissions, Poor Idle Quality, Misfire VIN: 1GCHK29254 Hi everyone, needing some direction on this LLY dmax. cust complaint of low power and smoke under acceleration. Test drove unloaded and runs fine other than trail cloud of black smoke when accelerating. after conferring with cust. again found only has low powe... |
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| 2005 Chevrolet Tahoe LS 4.8L No Start VIN: 1GNEC13V75 Hello again the last time I asked for help you guys really came through and I thank you for that. Now I have another one a 2005 Tahoe and it is a no start, no spark, no injector pulse and has a crank signal to pcm and out of the scanner has all powers and grou... |
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| 2006 Chevrolet HHR LT 2.4L Security Light, Power steering msg, hard shifting VIN: 3GNDA23P36 Car came in with intermittent driveability issue, security light will come on as well as power steering msg. When using scanner and start quick test mode, it will cause the security light and power steering msg to appear, I am stumped at this point, any help w... |
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| 2006 Chevrolet Corvette 6.0L abs VIN: 1G1YY26U96 67 mph false abs activation of right front wheel while accelerating moderate to heavily but normally no abs activation. |
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| 2008 Chevrolet Trailblazer SS 6.0L Tpms VIN: 1GNET13H08 Put vehicle into learn mode with parking brake up and light switch on and off three times. Horn honks after every sensor is woken up. Accessing the liftgate module on the scan tool it says its in learn mode and also indicates each ID on data. After driving dow... |
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| 2009 Chevrolet C5500 Kodiak C5V042 6.6L Brake Light On Dash VIN: 1GBG5V1969 This truck has had this problem of a brake light coming on the dash since new everything works great they wante me to ask you guys if you have ever ran accross this before it steers great and brakes great just went you get stuck in a tight spot turning around ... |
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| 2011 Chevrolet Silverado 2500 HD LT 6.6L cruise control Cruise control doesnt function--using tech 2-doesnt have any codes-i can enable (turn on/off) cruise control with steering wheel controls. scan data shows momentary contact switches work correctly, both data pids for brake switch shows not applied with no brak... |
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| 1994 GMC Sonoma SL 4.3L Cuts out VIN: 1GTCT14W4R Cuts out after about 30 minutes of driving. Have replaced spider, computer, ignition module, now want to try crank sensor. Got one in, can't find where it is on this engine. Alldata says in front cover, but not there. They show 96 up, not the older ones. Anybo... |
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| 2002 GMC Sierra 1500 SL 4.3L MIL Lamp on VIN: 2GTEC19W22 This truck came in with a complaint of hard starting hot and MIL illuminated. P0172 was retrieved. Fuel trims were -27 and -25 long term. After removing the throttle body, fuel could be seen dripping from the fuel pressure regulator. A new regulator was instal... Trouble codes: P0171 (Bank 1 lean), P0174 (Bank 2 lean) |
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| 2006 GMC Canyon SLE 2.8L No Start, Cuts out, MIL Lamp on VIN: 1GTCS14826 truck died on customer with a no restart at the time, finally got it started and drove it in, had several communication codes in several modules, started it up w no problems , sat over the weekend and yesterday it wouldn't start, The key chime was going off ev... Trouble codes: U1300, U1000, U1088 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2001 Chevrolet Silverado 1500 5.3L Abs Module VIN: 1GCEK19T61 TO ALL TECHS: APPRECIATED ALL YOUR HELP, VEHICLE WAS GONE FOR A WEEK, GOT IT BACK TODAY, USED MY SNAP-ON SCANNER & COULDN'T FIND ANY TIRE SIZE CALIBRATION, SO GOT OUT MY OLD MASTER TECH, AND CALIBRATED TIRE SIZE EVERYTHING IS FINE. AGAIN APPRECIATED ALL YOUR H... |
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| 2011 Chevrolet Tahoe LT 5.3L Hvac VIN: 1GNSKBE03B Thanks for all the replies. Turns out the circuit for the #55 fuse was for the HVAC actuators. Found the wire harness at the actuator on the drivers side had rubbed the metal dash bracket and shorted out and burnt the harness all the way across the dash to the... |
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| 2006 Pontiac G6 2.4L theft light VIN: 1G2ZF55B66 Just spoke with customer yesterday and the vehicle has been fixed. Most replies said bad key and they were correct. Before the final fix, the car began an intermittent no crank with several communication codes in different modules with the exception of the B... |
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