Quote:
Originally Posted by 99-LS1-SS
The top hose is still cool but the temperature gauge is reading 260 degrees.
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Is it that hot and overheating or just "saying" it's that warm? Unless the thermostat is upside down, I'd look toward gauge reading wrong.
When the truck is cold, pop the rad cap off and observe the flow. You can drain about an inch of coolant out of the rad. You can actually see when the thermostat opens. If you can do this with the truck on a hill so the rad is a little higher, you might just have an air bubble that needs to burp out.
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'86 C-30 dually, 454/tbh400
'73 K-20 350/350/205 (sold
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I'm kinda like duct tape- no real purpose, but handy to have around.