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Professional Automotive Repair Technical Discussions for January 11, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2002 Buick LeSabre Custom 3.8L Misfire VIN: 1G4HP54K92 All tech please help, this car only misfire under load when in gear and accelerate or in gear above 1900 RPM. No missed at idle in gear or in "P" with 3000+ RPM. I back probe #6 injector and got signal from ECM when under load in gear and above 1900 RPM when i... Trouble codes: P0300 (Random Misfire), P0306 (Cylinder 6 misfire detected) |
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| 1960 Chevrolet C10 Pickup 3.8L distributor This last week end he was driving on the freeway when a noise was heard from he engine bell housing area. He continued driving until failure and then towed it home. I inspected it and found the after market distributor(Summit) had spun and lifted from the oil ... |
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| 2005 Chevrolet C5500 Kodiak C5V042 6.6L lack of acceleration VIN: 1GBE5V1205 When cold This vehicle accelerates good and idles fine except for light white smoke from tail pipe. When it goes into closed loop or reaches operating temp it still idles fine, But when you raise the idle in neutral it becomes billowing white smoke (it always ... |
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| 2003 Pontiac Bonneville SLE 3.8L MIL Lamp on VIN: 1G2HY54KX3 This Pontiac has a fuel trim reading of -13 long term fuel trim. Fuel pressure is normal with no leakdown and no leaking regulator. Fuel injectors flow test equally. Have installed known good O2 sensor and mass airflow sensor from similar vehicle with no chang... Trouble codes: P0172 (Fuel trim rich) |
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| 2008 Saturn Vue XE 2.4L Starter VIN: 3GSCL33P38 this vehicle has had a intermittant no start (starter will not engage) soliniod clicks only. we checked all connections and all circuits involving starting system for power and grounds and possible shorts. we have found that if you turn the key on and allow al... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2008 Cadillac CTS 3.6L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 1G6DF57748 ok.Got it. so what was happening was the oil pressure when hot was going below 10psi allowing the cam actuators to stick.It took a lot of driving with the scanner hooked up while monitoring the cam variance and oil pressure to catch it.thanks for all the insig... |
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| 2005 Chevrolet Express 2500 4.8L No Start, Hesitation, Stall VIN: 1GCGG25V15 I would like to thank each one that replied by name but that would take too long. It was the ground at the back of left head,it is a 12 gauge black wire that comes out of the large loom that runs down the left side of engine near bell housing,it had very littl... |
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| 2010 Chevrolet Silverado 1500 LT 5.3L All brake lights VIN: 1GCPKSE00A Thanks to all help and it was as we suspected all along to be 2 defective NAPA brake light switches. |
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