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running with no thermostat

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Old 07-20-2013, 12:53 PM
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Year: 2001
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Engine: 4.0
Default running with no thermostat

Can it be done? my cherokee is running at 230 and I already flushed the system and replaced the water pump along with the thermostat. Any ideas or comments on running without a thermostat until the cooler months? Thanks!
Old 07-20-2013, 12:58 PM
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you can run without it, but it's purpose is to warm the engine up to operating temp quickly. Removing it will not stop the engine from reaching the 230 mark or higher, you either have a partially clogged radiator or a head gasket getting ready to rear it's ugly failed neck
Old 07-20-2013, 12:58 PM
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P.S I just noticed yours is an 2001....Cracked head or blown gasket would be the right quess
Old 07-20-2013, 01:16 PM
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Thermostats don't prevent overheating, they prevent overcooling.
Old 07-20-2013, 01:21 PM
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Thank you guys so much. Learned some new stuff! this forum and all the people on it are the best!
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