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Prev Professional Automotive Repair Technical Discussions for March 17, 2014
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Open Help Requests for GM
Help Request Answers
1983 Chevrolet Malibu Classic 5.7L Exhaust
Hey fellow exhaust techs. Anyone that may be able to help me with this one customer has given specific request for 3inch exhaust system this is a bear to make it fit. Looking for anyone who might have bend card info for the intermediate pipe and or tailpipes. ...
2005 Chevrolet Silverado 1500 4.8L Misfire VIN: 1GCEK14UX5
hi all, maybe some has seen this before and can tell me where to look or can give me a few ideas. truck came in with a check engine lite on and a code p0300 stored. pulled up miss fire data and saw that number 2 was missing a lot. pulled plug and swapped with ... Trouble codes: P0300
1993 Oldsmobile Cutlass Ciera S 3.3L Excessive Emissions VIN: 1G3AG55N1P
Cannot get vehicle to pass the California smog check due to high nox. We are at a loss over where to look or what else to do at this point.

Fixes & Summaries for GM
Fix/Summary Answers
2000 Chevrolet Tahoe LT 5.3L Scanner won't read VIN: 1GNEK13T9Y
Kudos to Timothy [...] for the tip about having a remote starter. This truck does have a remote starter and does have a wire spliced in to the data line at the aldl. We cut the wire and everything started working and it was able to pass the emissions test. W...
2004 Chevrolet Trailblazer LS 4.2L Hesitation VIN: 1GNDT13S84
Thank you for the many replies. We had checked all of the data on this line by line and everything looked normal. The vacuum reading was 17 at idle sorry for the misprint. Like the description says it only happened just as it was taking off after sitting for a... Trouble codes: 00171.
2005 Chevrolet Cobalt LS 2.2L Mechanical VIN: 1G1AL14F15
We'll I've found the problem it was a exploded primary hyd ten and guide I don't know if it was caused by lack of oil press or defective part but iam going to say no oil in the car. Lack of mant 2 teeth out of timing comf with lab scope now I have to tell the...
2007 Chevrolet Aveo LS 1.6L MIL Lamp on VIN: KL1TD56687
Thanks to all who replied. There are two updated programs for this car. It is PCV vale specific. The dealer had installed the wrong program. I installed the correct one and all is well. Regards to all. Brad Trouble codes: P0131.
2002 GMC Safari SLE 4.3L Serpentine Belt VIN: 1GKEL19X42
I have not yet fixed this vehicle, but I did get it back for closer look after post, the crank pulley and power steering pulley both appear to be worn "sharp" which I believe is the cause of the problem, customer is going to return for repairs when he has time...
2007 Saturn Vue 3.5L Steering Column VIN: 5GZCZ53467
Thanks for all the help. I'm waiting until the customer comes back in town. They left for acouple of months for winter, they will bring back when they get in town. Then I will post what fixed. Thanks again Ken
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