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Professional Automotive Repair Technical Discussions for July 15, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1993 Chevrolet C1500 Cheyenne 4.3L 1-2 shift VIN: 1GCDC14Z7P 1-2 harsh shift, no other shifting problems except for occasional Driveway shift is harsh Park to Drive, which I think is due to slow reacting IAC valve. Disconnected the Battery and shortyed terminals together at one time and seemed to be ok for three of four... |
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| 1998 Chevrolet K1500 Cheyenne 5.7L abs VIN: 1GCEK19R6W This truck makes you think it is not going to stop when you mash the brakes. The pedle goes almost to the floor doenot stop very well. I have been told that is a problem with this truck & can't be fixed i don't beleave that. If you have came across this please... |
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| 1999 Chevrolet Silverado 1500 4.3L Poor Idle Quality, Misfire VIN: 1GCEC14W0X Hi Kids This Truck Has Steady Misfire Spark is Good. Tried New Plug no Help. Hear is What I Want Help With. I Went to Check Exhaust Back Pressure. Removed EGR Valve So I Could Test Pressure at EGR Exhaust Port. Whith the Engine Running The Pressure Bounces up ... Trouble codes: P0304, P0305, P0420 |
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| 2004 Chevrolet Malibu LS 3.5L Service Airbag VIN: 1G1ZT54884 Car came in with draw battery going dead. Found BCM causing fault, replaced BCM and reprogramed VIN and mileage thru gm website, I assume it takes the VIN at that time because when going back into BCM to set it up with tech2 it says locked and I can only choos... Trouble codes: B1001 (option configuration error) |
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| 2004 Chevrolet Silverado 1500 5.3L No Start VIN: 2GCEC19T24 I was 100% sure I had this one nailed but here I am asking for HELP! 2004 Silverado w/ 5.3, A/T, 2WD. Towed in for a no crank no start. Symptoms are: when I turn the key to get it started it does not crank over, illumination lights, head lights and car w/ lock... |
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| 2005 Chevrolet Impala 3.4L Misfire VIN: 2G1WF52E15 Vehicle came in for timing cover gasket leak. fixed leak but set check engine light for 18x crank sensor. Replaced crank sensor and did crank relearn, found it was broke during gasket repair. Still had the light on. Used scope and checked pattern for crank sen... Trouble codes: P0300 |
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| 2006 Chevrolet Silverado 1500 LT 4.8L no start VIN: 1GCEK19V06 truck came in with having to turn key on and off few times for it to turn over. Ive tried everything that usually goes wrong u can start it from the relay just fine but if try start with key u have to fool with it few times. |
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| 2007 Chevrolet Silverado 1500 LTZ 5.3L Charging VIN: 1GCEK19J17 Hi this truck came in with an intermittent no charge. When first started it charges ok but after it runs a while and warms up the gage will drop to below 13. put a tester on the battery and that also shows below 13, its at about 12.2. with the scan tool hooked... |
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| 2011 Chevrolet Cruze LT 1.4L MIL Lamp on VIN: 1G1GP5S91B Fist of all thanks to all who have taken time out to read our request. This car is kicking our butt. Car has code p0299 turbo under boost, we found the wastegate valve sticking in the exhaust manifold replaced with a used one 47k on it. Customer drove for abou... Trouble codes: P0299 (Turbo under boost) |
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| 2007 Pontiac G6 2.4L Vents VIN: 1G2ZF58B47 Started out No A/C Replaced compressor ,H valve,and orifice Flushed system Now have perfect A/C Low side 35 High Side 155 My problem is 58 Deg. on Pass Side 80 Deg on Driver side this is single Blend door system Manuel A/C control Im Thinking Problem inside Bo... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2003 Chevrolet Trailblazer North Face 4.2L MIL Lamp on, no acceleration VIN: 1GNDT13S43 Finally it's fixed. It was the PCM. I done a used one. Thanks to Drew tech and Iatn. I'm thinking of getting the MDI from my GM parts department and a subscription. I see a lot of GM and the pass thru is ok but that's not good enough. I still have the U1000 bu... Trouble codes: U1000, P0113, P0530, P0463, P1275, P1280. |
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| 2006 Chevrolet HHR LT 2.2L Cooling Systems VIN: 3GNDA23D06 Guys thanks for the input, I agree that it's prob the head gasket but without being able to rule out a gauge problem I couldn't be certain. After waiting 2 weeks for "more info", we haven't heard back from the customer. I guess he doesn't care, so neither do... |
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| 2007 Chevrolet Silverado 1500 Classic LS 4.3L power assist VIN: AGCEC14X87 many thanks. it was the pump. never seen 1 do this in 38 year's ,took the old 1 apart did not see anything wrong. i'v probably only needed pressure gauges 4 times in 38 years to diog. p/s problems, they are too hard too hook up on most cars... |
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| 2010 Chevrolet Silverado 3500 HD LT 6.6L 1-2 Shift And Codes PO708 AND 762 VIN: 1GC4K0B62A thank you scott for informing me that the mode switch sad inside the transmission. doug, bill, and ken were right on the money. what was weird about this one was the code would come on just with the key on not running then would disappear. i eliminated the wir... |
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| 2007 GMC Yukon Denali 6.2L running boards VIN: 1GKFK63827 Thanks to Howard, Robert and others. My guess is the AAA blew the fuse to both the OBD11 and running boards. Recapping: Could not get system to work. Could work the system with the TECH2 (make boards move up and down) I did reset counters and attempted an in... |
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| 2004 Saturn Ion-2 2.2L Excessive Emissions VIN: 1G8AM14F84 Thanks for all the advice. I decided to pull the valve cover and check. The timing chain had jumped. I look inside and I can see one of the guide in there broke. The exhaust cam are off. The camshafts had severe scored on it. Talk to the customer and found out... Trouble codes: P0172 (Fuel Trim Too Rich). |
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