temp guage
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CF Beginner
Joined: Jan 2008
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temp guage
have an 03 2500hd with 6.0L temp guage reading 210 when truck is ice cold. two days ago guage read about 245 while going down the road pulled over check hoses upper was warm lower not so warm had driven 6 miles. thought thermostat was stuck so called wrecker. work at a parts store soyesterday pick up thermostat and today put it in. temp guage still reading 210 after two days sitting. ran truck down the road8miles temp reads 230. put a temp probe on the cyclinder heads they read 160,water pump reads 160,upper hoses warm to touch lower hose coldany suggestions
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Joined: Oct 2007
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From: Dayton PA
RE: temp guage
Well the easiest place to start would probably be the temp sending unit and work your way to the gauge, sinceyou have already established that it is not a bad thermostat. Just a suggestion.
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Joined: Aug 2006
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RE: temp guage
Most likely a bad gauge stepper motor, very common on this year instrument cluster.
Have your dealer reference GM Document ID # 2037454 which will cover the gauges under warranty for an extended period (7 years or 70,000 miles).
Have your dealer reference GM Document ID # 2037454 which will cover the gauges under warranty for an extended period (7 years or 70,000 miles).
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