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Professional Automotive Repair Technical Discussions for June 25, 2015 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2008 Cadillac DTS 4.6L MIL Lamp on VIN: 1G6KD57998 Car has a P0455 evap emissions large leak. Put in a new GM gas cap and canister vent solenoid but the code came back. Smoked it through the fuel filler and get plenty of smoke coming out of the vent hose cap which is tie strapped to the filler hose. Don't have... Trouble codes: P0455 (evap emissions large leak) |
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| 1997 Chevrolet K2500 Suburban LS 5.7L Cuts out, Misfire VIN: 3GNGK26R4V Hello All. Got a customers vehicle that he came in asking for a exhaust leak repair and rear O2S replacement. Repaired his his exhaust leak at the converter flange before the post O2S and replaced the B1S2 sensor. Costumer has a complaint of rough idle and mis... Trouble codes: P0140 (Low O2S Activity B1S2), P0141 (O2 Heater Circuit B1S2), P0717 (No / low Input / Turbine Speed Sensor), P0730 (Incorrect Gear Ratio), P0751 (Shift Solenoid A Stuck Off), P0753 |
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| 2001 Chevrolet Blazer LS 4.3L Misfire, erroneous missfire VIN: 1GNDT13W51 Have a blazer here putting me through the ringer. came in with a p0300 watched misfires and found tech 2 counting 3,6 missing customer had did his own spark plugs sprayed around with water and seemed to have started counting more. fuel trims and all other data... Trouble codes: P0300 |
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| 2006 Chevrolet Malibu LS 2.2L No Start VIN: 1G1ZS51F96 2006 Chevrolet Malibu came in on a hook, cranks with no start. No trouble codes. Checked fuel pressure and found fuel pump not running. We replaced the fuel pump and filter and the car started and ran normally. 2 weeks later car returns with the same problem... |
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| 2006 Chevrolet W3500 Tiltmaster W3S042 5.2L No Start, Stall VIN: J8DB4B1626 when you go to start it will not start with cmp sensor plugged up unplug starts right and runs smooth while it running you plug up cmp stall engine another garage has replaced cmp sensor and crank sensor has anybody see this issue any help thanks Trouble codes: P0340, P0336 |
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| 1998 GMC C3500 Sierra SL 7.4L a/c control head VIN: 1GTHC39J9W Hello fellow Techs, hopefully some one out there has come across this problem before. Customer came in with the a/c not working, blower works, the a/c button was not lighting up. Checked fuses, removed head and checked for power and grounds to the unit. All we... |
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| 2002 Saturn LW300 3.0L MIL Lamp on, communication VIN: 1G8JW84R82 scan test with tech 2 code u2106 in pcm and bcm. cannot commun icate with tcm. followed diagnosis in aldata, power and grounds at tcm good,comm wires twisted pair tan w black stripe and tan wire good to ecm.no water staines on tcm or bcm both mounted in cowl r... Trouble codes: U2106 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2003 Cadillac Seville STS 4.6L Service Stability System Message VIN: 1G6KY54913 Thank you all for the replies and sorry for the delay in closing. We have found that either the system is not able to be by passed on this vehicle(suggested by more than one person) or there is another problem with the module. Client opted to take vehicle and ... |
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| 2009 Chevrolet Silverado 1500 WT 4.8L Poor Idle Quality, Cuts out, Stall VIN: 3GCEK13C19 Thanks to all who replied. Finally got it to act up to where I could run some test. 5 volt reference was only at 2.63 volt when acting up and Jamie nailed it. It was the fuel tank pressure sensor. Changed it and all is well. The hardest part was getting it to ... Trouble codes: P0641 (5 Volt reference 1 circuit). |
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| 2009 Chevrolet Impala LT 3.5L MIL Lamp on VIN: 2G1WT57K39 many of you were telling me wiring problem and to run new wires. well I don't really like to do that so I completely opened up the wiring harness under the hood and behold there it was. A wiring repair on light blue wire for app sig 2 and it was butt-connected... Trouble codes: P2138 (app sensor 1-2 corralation). |
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| 2010 Chevrolet Impala LT 3.5L Right Rear VIN: 2G1WB5EN8A thanks to all who helped out on this one.it ended up being the left front harness connector.i was showing no signal on my ohmmeter while spinning the wheel,but as soon as I touched the connector at the wheel end,my meter started chirping!instead of trying to m... |
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| 2003 GMC Yukon Denali 6.0L Ride Control VIN: 1GKEK63U13 Hello everyone and thanks for the help on this one. I was incorrect, that is not a solenoid mounted on top of the front shock, that is just the electrical connector. The solend etc is built into the shock. These shocks should click randomly but very quiet... |
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