Hey guys I've got coolant boiling in my overflow bottle. I'm suspecting one of two things. Either the Thermostat, or the rad cap is not pressurizing. My temp gauge reads in the 100-200 range, and running for five-ten min at idle before it boils. I know I don't have an internal problem as there is no steam coming out the tail pipes, oil is clean, coolant is clean.

Other than those two minor things is there anything else that could cause this?

I forgot I should mention that my fan doesn't come on over the course of those 5-10 minutes. I'm wondering if the fan might be part of the problem or is it just not at the point where it would come on yet.

 

you only need to post in one of the catagories, no need to post the same question in multiple catagories, I responded to the one in the cooling section already. hope it helps.

 

Sorry about that. Wasn't sure if I would get a faster response on one or the other. Thanks now if one of the mods could lock this one that would be great.