|Prev||Professional Automotive Repair Technical Discussions for April 9, 2015
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Open Help Requests for GM
|2004 Chevrolet Aveo 1.6L MIL Lamp on VIN: KL1TD52654
these 3 codes p0300 p0700 91781 keep coming back as soon as you get to 20 mph we did the valve bulliten 05-06-01-030d and all where replaced with new seals. runs fine also speedo only reads half of speed going installed new speed sensor and did not change than... Trouble codes: P0300, P0700, P1781
|2010 Chevrolet Express 1500 4.3L Poor Idle Quality, Hesitation VIN: 1GCUGADX0A
Hi guys. I have a new one iv not seen before. When van has warmed up, put in dr. It bougs down and starts pinging like bad fuel with a over heated eng. But it is not. Park or netral is fine. My load percent goes to 100.in dr. Idle is 30 percent load in park. V...
|2004 GMC Envoy XUV SLT 4.2L Misfire VIN: 1GKET12S24
Greetings All. This 04 Envoy is driving me nuts. When in overdrive at cruise, worse going up hill, you get what feels like a misfire. I have changed the plugs ( had Autolites, now AC), there are no codes, no misfire counts in history or live, all data looks no...
|2007 GMC C5500 Topkick C5U042 8.1L allison trans VIN: 1GDE5E1G37
posting this for a friend. codes po848, 731, 762, & 751 set if try to move move before warm. shifts fine after 10 mins of running. PRNDL blinks & goes blank during warm up. anybody seen this. any ideas Alli
Fixes & Summaries for GM
|1994 Chevrolet P30 7.4L Front Brakes VIN: 1GBKP37N9R
Thanks to all who replied- and some who took the time to follow up. I hadn't given the details of my SOP for machining rotors, which is pretty exact- we use an FMC lathe and the final cut is supposed to be less than 2 on the dial- preferred is 1 1/2, then a sw...
|2005 Chevrolet Silverado 1500 LS 5.3L Poor Idle Quality, Surge, MIL Lamp on VIN: 2GCEK13T35
Kept looking for vacuum leak and watching fuel trims, brakes work good and feel good. Replaced o-ring on back of master cylinder same problem, replaced brake booster fixed problem fuel trims ok and no idle surge thanks for all the help. Trouble codes: P0171, P0174.
|2009 Chevrolet Silverado 1500 WT 5.3L t-case VIN: 3GCEK13379
Thanks to all of you for the help. I will summarize this repair as well as possible. I wish I were savvy enough to get pics from my iphone onto IATN to show oscilloscope patterns. Anyway, I will say that the service manual diagnostic routine SUCKS! Very poor ...
|2009 GMC Sierra 1500 SLE 5.3L Programming VIN: 3GTEK23M79
Our local machinist led me to LT1swap.com . Loads of information and where and what is needed. He also reprograms the pcm at a very reasonable price. Thanks to all for the info supplied.