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Professional Automotive Repair Technical Discussions for January 7, 2016 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2001 Chevrolet Blazer Xtreme 4.3L Misfire VIN: 1GNCS18W61 Ok this is the 1st conversion i have done . It just happens to be on my wife truck. I found that i had a plug injector on the original system, misfire on cylinder 2,3,4. Cylinder 2 had the most misfire and fail the injector balance test and fuel pressure drop ... Trouble codes: P0300 (Misfire detected) |
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| 2003 Chevrolet Trailblazer North Face 4.2L MIL Lamp on VIN: 1GNDT13S43 what is the decay time when you run the purge seal function with the verus want to verfy the system and as far as i can tell everything is normal all mode 6 data appears to have passed... fuel gauge works and is between 15 - 85 % what am i missing for evap sta... Trouble codes: P0440 |
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| 2007 Chevrolet Uplander LS 3.9L Surge, racing idle speed VIN: 1GNDU23137 Hi All, Engine idle is 200rpms higher then the target rpm. If accelerated in park, rpms go to 2000 and stay there until engine is shut off. P0507 stored in PCM. Both pedal position sensors and TPS sensors return to idle position while this is happening. Checke... Trouble codes: P0507 (high Idle Speed) |
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| 2002 GMC Yukon XL 1500 SLE 5.3L MIL Lamp on VIN: 3GKFK16Z22 We are currently working on a 2002 Yukon xl. the customer complains of a flashing cel after driving on highway for extended period of time. The only code stored is a p0300 and the history shows many misfires on #5 & 7 cylinders The customer states he does not ... Trouble codes: P0300 |
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| 1999 Saturn SC2 1.9L engine VIN: 1G8ZY1275X Hi guys, I'm helping my brother with his Saturn SC2. Healthy crank. Got fuel pressure = 46. Spark on all 4 wires with a timing lite. I was checking this in his driveway last night. Have good pattern on Vantage scope on Crk sensor. Power and ground good at Ign.... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2001 GMC Savana 1500 5.7L hard start VIN: 1GDFG15R31 What we done to fix the van was this...After letting van sit for at least 48 hours for about the 4th time and then go to start van , seen that for some reason the EGR was commanded on full and the timing was retarded 50 degrees...I could only see this with a T... |
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| 2002 Oldsmobile Alero GX 2.2L No Start VIN: 1G3NK12F02 WE did a compression test and found all cylinders around 210 PSI. Next we installed new spark plugs and a new coil pack. The vehicle fired almost immediately and runs great. Thanks for everyone's help. |
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