1995 GMC C3500 idle temp

1995 GMC C3500
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BKLYNMYKE
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Engine Cooling problem
1995 GMC C3500 Automatic 60000 miles

when I'm in idle the temp gauge rises but then as soon as I start to drive the needle moves back to the middle. Why does this happen & how serious is it?
Mar 26, 2010 at 5:41 PM
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RASMATAZ
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Hi bklynmyke, Welcome to 2carpros and TY for the donation.

Replace the thermostat and make sure the coolant is up to level-don't work report back asap.
Mar 26, 2010 at 6:01 PM