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Prev Professional Automotive Repair Technical Discussions for March 4, 2012
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
1990 Chevrolet Lumina 3.1L Stall, no power VIN: 2C1WN54T8L
Hi guys, Forgive me but I am not at the shop, on vacation in the country at a friend's house. His daughter's 90 Lumina began acting up one day losing power then just died. We got it to his house and began looking. It will start up easy and idle fine but if y...
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1996 Chevrolet C3500 6.5L Mph VIN: 1GCHC33F4T
Customer had rear end change trying to increase fuel economy. They replaced a 4:10 with a 3:42 and now the speedo is off by 12 mph at 60. I am not sure how to correct this for him and would like to know if anyone has had experience with this type of issue.
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2009 Chevrolet Silverado 1500 LT 5.3L water temp gauge/IPC message center VIN: 3GCEC23J39
Getting FALSE "Engine HOT" message on IPC and engine temp gauge does NOT move from cold(160F is min on temp gauge). The vehicle was being driven and everything was normal. All of a sudden temp gauge drops to minimum value(160F) and "Engine HOT/AC turned OFF" m...
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Fixes & Summaries for GM
Fix/Summary Answers
2004 Chevrolet Trailblazer LS 4.2L Cluster/battery dead VIN: 1GNDT13S04
Figuring this truck needed a cluster brought it to the dealer. They ended up replacing the ignition switch and the cluster now it's all happy thanks for the info!!
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2005 Chevrolet Trailblazer LS 4.2L MIL Lamp on VIN: 1GNDT13SX5
Sorry for the late closing, I closed for 9 days for a vacation (First in 25 years). I hoped to have it finished before I left but ran out of time. Most all of the help offered was very useful. Most pointed to the purge valve for the P0455, and the converter f... Trouble codes: P0420 (Cat efficiency), P0455 (Evap large leat).
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2003 GMC Sierra 1500 SLE 4.8L Hesitation, MIL Lamp on VIN: 1GTEK14V03
every one suggested cleaning the ground wires at the rear on the cylinder head, they were corroded also cleaned grounds at front of engine , and also cleaned the throttle body road tested and returned it to customer and all is fine , sure helps to have the po... Trouble codes: P516.
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