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Professional Automotive Repair Technical Discussions for May 14, 2014 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2003 Cadillac CTS 3.2L valve lifters VIN: 1G6DM57N13 First time customer, vehicle presented with complaint of poor idle quality, rattling noise from right cylinder head area consistent with faulty valve lifters. Engine oil is full and clean. Customer stated he had taken the vehicle on a 3 hour road trip at highw... |
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| 2006 Cadillac Escalade 6.0L Suspension VIN: 1GYEK63N96 This vehicle has a bad rt rr shock-shocks are $660.00ea from the general-owner was wanting to do the conversion from arnott industries which includes some electronic bypass to make the message go away on the dic-the truck rides fine-the owner would just like t... |
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| 2006 Cadillac STS 3.6L Traction control VIN: 1G6DW67716 This unit will on occasion engage traction control off the stop sign and hold back power. The drivers display indicates the need for traction control service. The car will comm on the ECM and TCM high speed can circuits, but 3 different scan tools will not bri... |
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| 1997 Chevrolet Camaro Z28 30th Anniversary Edition 5.7L MIL Lamp on VIN: 2GF1P22P7V Code p1371 can set just by turning ign switch to on.Scan tool shows 325ms with key on and hi res shows no. Unplugged dist. and it still reads 325ms.Scanned a 1994 caprice with same eng. ,it shows 0 ms at key on. As soon as i crank eng over low res numbers drop... Trouble codes: P0336, P1371 |
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| 1998 Chevrolet K1500 Cheyenne 5.0L Engine VIN: 1GCEK14M2W Hi everyone, I have a 98 chev 1/2 ton pickup up here that was getting coolant into the crankcase from some leaking intake gaskets (suprise)! Thought I would be able to save it as the lower end was still quiet. Well I proved myself wrong, a test drive to town, ... |
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| 2001 Chevrolet S10 LS 4.3L Fuel tank VIN: 1GCDT13W51 No start--diagnosed as faulty fuel pump--living in a salt belt , we discovered that the fuel tank was rusted so badly that it could not be saved. Where can you get a tank for this thing. Gm discontinued the tank, none available in the aftermarket world that i ... |
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| 2005 Chevrolet Colorado Sport LS 3.5L low oil pressure VIN: 1GCDS19685 Once the engine reaches operating temperature the red oil pressure light comes on, on the instrument panel and the warning buzzer sounds. Looked up and found a TSB in regards to quick stops and sudden turns causing a momentary low oil pressure condition, but t... |
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| 2005 Chevrolet Silverado 3500 6.6L Hesitation, Misfire VIN: 1GCJK33215 Vehicle came in with complaint of CK Engine light and Missing with white/gray smoke from exhaust; so much you could not see behind vehicle with mirrors due to smoke while the problem was occurring. Also starts knocking while problem is occurring; A knock like ... |
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| 2006 Chevrolet Silverado 1500 WT 5.3L transfer case control VIN: 1GCEK19B66 Have a strange one here. Vehicle came in with complaint of Transfer case select switch does not light up and service 4wd indicator is on. Scan and found C0327. Encoder return voltage (as reported by the scantool) is normal. Verified no lights on the switch.... |
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| 2006 GMC Sierra 1500 SLE 5.3L Surge, MIL Lamp on VIN: 2GTEC13Z86 Well the problem child has these two codes come back within a couple miles sometimes even standing i have replaced intake gaskets maf to no results, smoke test shows almost no leaks tested brake booster blocked of line and smoke tested good results no leaks i ... Trouble codes: P0171, P0174 |
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| 2007 GMC W4500 Forward W4S042 5.2L crankcase VIN: J8DC4B1607 Before disabling and tearing into this one again, I would like to know if anyone has seen or heard of this, or has any insight. We have replaced numerous NPR injectors, pumps, and associated items on other fleets, but this particular truck has a gremlin. |
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| 2011 GMC Sierra 1500 SLE 5.3L no communication VIN: 1GTR1TE03B vehicle was given to me from another shop. they said the tpms light is on and the abs lights on as well. tried to communicate with the modules and both received no comm. this truck is base of base, no power locks, power windows, power mirrors...nothing. so obv... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2000 Chevrolet Silverado 1500 5.3L drl VIN: 2GCEK19T7Y Well, it's fixed! (And yes, e-brake will kill the headlights when they are on automatic.) Turned out that the new (aftermarket) light sensor was bad. While backprobing the white return wire at the BCM and getting the truck into the sunlight in drive, I could s... |
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| 2003 Chevrolet Express 3500 6.0L Cuts out, Stall VIN: 1GCHG39UX3 thanks for all he help,it was a bad wire from iac to the pcm.it wasnt rubbing on the control arm though.ran a new wire.i guess i thought if it was an open circuit it would have set a code.but i had no codes.learn something everyday.and all knowing tim from wis... |
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| 2005 Chevrolet Silverado 2500 HD 6.6L Temperature Gauge VIN: 1GCHK29265 Thanks to everyone that responded. The scan tool and laser thermometer showed engine is 40D. F. below what the dash gauge and driver information center showed. In preparing to send out or repair dash gauge, I spoke with company that does dash rebuild and re... |
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| 2008 Chevrolet Uplander 3.9L p2070 VIN: 1GBDV13WX8 Thanks for the help on this. Replace the tuning valve and the intake . Cleared codes and test drove 3 times . All is well |
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| 2001 GMC Yukon SLE 5.3L Misfire VIN: 1GKEK13T01 replaced the intake manifold gaskets and still had the misfire. the owner took the vehicle to the dealership and said that the valve seat on either cylinder #3 or #4 was out preventing the valve to seat leaking compression to the opposite cylinder. too expensi... Trouble codes: P0300. |
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| 1998 Pontiac Bonneville SE 3.8L door locks VIN: 1G2HX52K3W Thanks to all who replied- the actual fix was very simple. There was some confusion as to where the actual ground for the involved circuits was located. Initially the ground was checked at the left lower rocker panel along side the drivers seat. With a better ... |
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| 2008 Saturn Aura XR 3.6L Radiator Fan Blade VIN: 1G8ZV57718 OK so maybe this wasn't worthy of a help request? Dan TX has seen the same thing happen & I agree with him & other posters about replacing both fan blades & motors. I also agree with Tim WI that this is very rare & if the second fan blade looks OK no cracks... |
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