Okay, I have looked everywhere for the Thermostat. I have a 98 F-150 and can't find the Thermostat for the life of me. I am used to the old style where the Radiator cap has a thermostat in it. I have no radiator cap, can't find the thing for the life of me. Followed the lines and maybe don't know what I am looking for. Can some one help me out?

Terry

 

Ok, I am confused as well. Are you talking about the thermostat for an air system or are you talking about an engine thermostat. Regardless, I have never seen one in a radiator cap. Nore info please.

 

I'm having problems with no heat. I am trying to find the Thermostat for the radiator. Trying to troubleshoot my heater problem. But I can't find the thermostat for the radiator.

 

Ok, that is the engine thermostat and it should be in a housing at the end of the radiator hose, where it attaches to the engine. But, before I suspected a thermostat, I would wonder about a stopped up heater core, a stuck blend door, a bad switch on the blend door, maybe a fuse. Did it work before while you had the truck? A bad thermostat will only cause your truck to over heat if it is stuck closed, or cause it to take a while to warm up if it is stuck open.

 

I just bought the truck a couple months ago, and this is the first time I tried the heat. The coolant resevoir is a little low when the truck is cold. Are you talking about a fuse? I am not 100% on the terms. Can you point me in the right direction a little more?

 

this truck needs to go to the shop before something bad happens

 

lol, hehe. Yep

Luckily I added some coolant and it heated right up. Thanks guys for all the help and sarcasim. All in good fun.

 

good job, now where is the leak?

 

I'll take your advice and ask the mechanic.