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Professional Automotive Repair Technical Discussions for August 24, 2012 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1999 Chevrolet K2500 Suburban 7.4L Cuts out VIN: 3GNGK26J9X we have a 99 suburban 7.4 with an aftermarket super charger on it. cuts out very bad on accelleration . fuel pressure at idle is 48 psi . when it starts to cut out fuel pressure drops to about 20 psi . im thinking the fuel pump we put in 2 months ago might be ... |
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| 1999 Chevrolet Tracker 1.6L Speedometer VIN: 2CNBJ1862X Would like to know if the speedometer on this vehicle can be recalibrated? It has oversize tires and the customer would like to get the speedometer reading correctly. Can a factory scan tool perform this, or are we looking at an aftermarket fix of some sort? C... |
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| 2004 Chevrolet Avalanche 1500 Z66 5.3L ignition VIN: 3GNEK12TX4 Starter sticking 2 or 3 sec after igition is released, only does it 2 or 3 times a day |
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| 2005 Chevrolet Uplander LT 3.5L ignition VIN: 1GNDV33L15 car got towed in late yestarday, complaint was didnt wanna start. checked the battery to make sure there's good voltage, made sure all grounds is good. then i made sure the security light goes off when key is in ignition. I have no communication to scan tool, ... |
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| 2005 Chevrolet Silverado 2500 HD 6.6L No Start, Stall VIN: 1GCHK23225 I have followed the flow chart for code p1626 and it called for replacing bcm, replaced and still has same symptom... crank-start for half-second then stall just like a vtd fuel disable... checked all powers and grounds at bcm and pcm. scoped class 2 data line... Trouble codes: P1626, P0675 |
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| 2007 Chevrolet Silverado 2500 HD LT 6.6L Right Front Wheel Sensor VIN: 1GCHC23697 We have this 07 Silverado 2500HD that kicks out a C0040-01(right front wheel sensor shorted to battery).Have tried a new sensor to no avail.Have tried an OE wheel bearing to no avail.Tried shimming sensor to increase air gap to no avail.Loaded circuit with 12 ... |
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| 2003 GMC Yukon Denali 6.0L instrument cluster VIN: 1GKEK63U53 When the vehicle arrived, it had C0035 RR speed sensor short or open and C0455 Steering position sensor stored in ABS ECU. After inspection, found LF wheel bearing loose. Replaced hub/bearing with included speed sensor. Cleared all errors and road tested vehic... |
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| 2002 Saturn Vue 3.0L pc solenoid VIN: 5GZCZ63B02 Got called in on this 02 Vue that had the transmission replaced with a used unit. It is setting a P0962 code for pressure contol solenoid low current. I checked the wiring to the pc sol which checked good and the pc solenoid ohmed out at 5.5 ohms on both the u... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1991 Chevrolet C1500 Cheyenne 5.7L No Start VIN: 1GCDC14K4M Thank you to everyone that replied and that tried to help. There have been lots of good ideas and things were mentioned that I wouldn't have otherwise thought of. Nothing has produced anything fruitful, so far, unfortunately. Sometime in the next week or two, ... |
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| 1996 Chevrolet Blazer 4.3L Misfire VIN: 1GNDT13W8T Thank you for all of your info, turned out to be a valve problem, I lost sight of basics, thank you all for steering me in the right direction. Trouble codes: P0301. |
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| 1999 Chevrolet Corvette 5.7L ABS Pump Motor VIN: 1G1YY32G2X I would like to thank all of you for your help. For cost reasons, decided to perform the ABS/Scan Tool bleed procedure at the dealer. So far, have not gotten the code or warning messages to reoccur. Though, it was quite intermittent before. If the problem reoc... |
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| 2002 Chevrolet Malibu 3.1L Gauges Compressor VIN: 1G1ND52J12 WELL WE FOUND THE A/C CLUTCH WOULD DRAW A LITTLE TO MUCH AMPERAGE AT TIMES AND BLOW THE THE FUSE, THIS FUSE WOULD KNOCK OUT THE GAS AND TEMP GAUGES ALSO. CLIENT DID NOT WANT TO REPAIR THE A/C, SO WE INSTALLED NEW FUSE UNDER THE HOOD AND UNHOOKED THE CLUTCH. |
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| 2003 Chevrolet Silverado 2500 HD 6.6L High fuel pressure VIN: 1GCHK23113 Thank you again for the help on fixing this truck. As that saying goes you can not fix stupid. Seth from NY, Jake from Alberta, Dan from Ontario and others assumed I had the lines mixed up. Carl from Pennsylvania suggested plugged return lines. I proceeded to ... Trouble codes: P0193 (Fuel rail pressure sensor ckt. signal high), P0380 (Glow plug heater ckt. problem). |
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| 2008 Chevrolet Avalanche LS 5.3L died out VIN: 3GNFK123X8 Yes, the fuel pump control module must have been the issue. It is mounted in a place that is not too safe, and the module had a hole knocked in it. It did have to be reprogrammed. Trouble codes: P0606, P069E. |
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| 2008 Chevrolet HHR SS 2.0L Poor Idle Quality, Surge VIN: 3GNCA63X98 Techs shared that 101% full is abnormal. I closely checked this and 2 other times it was 75-91% fuel level when the problem occured. So this seems to be ruled out. One reply said a fuel pump filter was clogged on a simular vehicle that caused this symptom. I n... Trouble codes: P0236 (Boost pressure sensor out of range). |
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| 2009 Chevrolet Silverado 1500 WT 4.3L fuel gauge VIN: 1GCEC19X09 I tried my snap-on scanner but couldn't get it to communicate. I think key is messed up got it off ebay. It's hell being a small shop. Anybody have a tech 2 for sale cheap. couldn't get a good reading with my volt meter either as it is a harbor freight special... |
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| 2001 GMC Yukon XL 1500 SLT 5.3L fuel gauge VIN: 3GKFK16T11 the truck had two problems,the instrument cluster was bad,no sweep of fuel gauge,replaced cluster with used one and sent original in for repair.the other problem was a old spliced wire at fuel pump connector.it was the orange with black ground to pcm. that is ... |
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| 1999 Saturn SL2 1.9L Poor Idle Quality, Misfire VIN: 1G8ZK5273X ok, after another set of eyes and more thoughts on this we noticed the ckp waveform had two very small humps in it after we blew up the picture, further inspection we finally pulled the ckp and stuck the ... Trouble codes: P0336 (cam position sensor performance). |
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