Quote:
Originally Posted by dtw
Ah ha - ok, slow down. You probably don't need to pull the thermostat to check function. When the engine warms up, you should hear some gurgling as the oil passes through the lines. The lines should also heat up. If you have access to a pyrometer, you can also shoot the lines to get a temp reading.
I had a similar issue with my 2.7. Could NOT figure out why it was overheating - under all conditions. Even cruising in cool weather would cause the temp needle to steadily climb into the "too damn hot" zone. Finally tore the engine apart and found heads with completely shot valve guides and valves. The heads were trapping heat in the engine. Strange, because the engine was not at all smoky. Hopefully this is not the case in your engine - I'm currently about $4k into the rebuild and counting...
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I don't think you found your problem. "The heads were trapping heat in the engine"? HUH? Maka no sensa to me. If I am wrong I'd appreciate someone educating me on how this can be..