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cold running engine


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#1 OFFLINE   hunters1

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Posted 26 November 2012 - 06:52 AM

2007 GT500 15,000 miles. Car running cool. 140 degrees on interstate, and 160 after running car hard. I get a check engine light when driving extended interstate driving for cold running engine. Car has reischt 170 thermostat.(previous thermostat was stock, same issues) Steeda 91 octane tune via Predator. Checked thermostat using separate thermometer and opens at 170 degrees. Checked primary temp gauge and it is reading true. Checked fan temps and they are set correctly per instructions that came with thermostsat.
The only other thing that I think it could be is coolant mixture? Am I on the right track? Other possibilty is temp sensor?

#2 OFFLINE   shelby001

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Posted 26 November 2012 - 07:29 AM

Sounds like you checked everything but the temp. sensor .




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