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Old 06-13-2004, 06:57 AM
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Overheating during idle?

I have a 1940 Chevy 350 engine streetrod. It has an AFCO aluminum radiator with an electric fan. I have had for 5 years and NEVER run over 200 degrees. In fact, I have been in several parades and NEVER run hot.

The car has sat for 1 year and I recently took to a car show. The guys said i had some white smoke coming out the exhaust (maybe valve guide leaks). So, I put in some Stop Leak. It has only helped marginally.

When I drove the car yesterday, (once in the early morning and once at night time), the temp guage read 185-190 degrees the entire time). When I stopped to show the car, during a 5 minute idle- it started puking out anti-freeze and was running close to 225 degrees...... It has NEVER done this?

As I think about, I am not sure if the fan kicked on? Normally, I can hear the fan, but during my night drive, I paid attention and did NOT hear the fan come on?

Any ideas or suggestions? THANKS!

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Old 06-13-2004, 09:37 AM
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check your thermostat and your fan
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Old 06-13-2004, 07:21 PM
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Heat

Doc here

Check the Fan fuse, relay, and sender first. Next check to see you don't have an air bubble in the cooling system. It may be time for a flush and back flush too...If All's good check the thermostat, although, it seems to operate on the Highway.

My Bet is on the Inop Fan....

Doc

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