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Old 07-17-2010, 09:24 AM   #2
gchemist
BAD BOW-Silverado XST
 
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Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
Re: 03 zr-2 over heating

I suggest two items. Add an external transmission cooler. Two upgrade the clutch fan to an Explorer 4.0. I upgrade my 4.3 fan. Add some Water Wetter to the system. Try running a larger % of water. Last, the switch could be failing.
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