Mark-87-951

I was looking around on the Lindsey site and ran across a note that a car could run hot if the oil thermostat is stuck closed. They said to check the oil cooler. If the engine coolant is hot and the oil cooler still at ambient, the oil thermostat is stuck.

I've been running a bit hot IMO. It doesn't overheat but still seems pretty darn hot in the engine compartent even after 10-15 minute drives. As in, cam tower too hot to touch. I had a very short drive tonight, the coolant temp was starting to raise to operating temperature but the oil cooler was still very cool.

I'll check again after a longer drive or let it idle till the fans kick in and check again.

How hard is it to replace the oil thermostat?

hosrom_951

I don't think that will solve the problem you are having....

But, that oil cooler thermostat is located in the oil cooler/housing. Ever wondered what that big allen plug is next to the oil filter? that's the cap, the thermostat is inside. It's function is to allow oil to pass through to the external oil cooler, when needed.

Tom M'Guinn

Find a point and shoot thermometer and see if the oil cooler is hot after a long drive. See "oil seals" replacement procedure in the link under this post. If the housing is off the car, you can boil it in peanut oil and watch the thermostat open.

Bri Bro

You would be surprised how long it takes the oil temp to come up the coolant temp with normal driving. I would take it out for a 30 minute drive and then feel the hoses going to the oil cooler.

Tom M'Guinn

Takes even longer to boil peanut oil...