bumblebeer
Registered User
I'm having an overheating issue. Hoping someone could help me sort it out.
I'm using the factory gauges and it seems to be running a little hotter in general. The needle rides at about 12 o'clock where it would stay around 11 when I first got the truck. It has an aftermarket aluminum radiator and I just replaced the fan clutch. The condition and manufacturer of the thermostat is unknown.
I was driving on the interstate unloaded this morning keeping around 2200 rpm and the temp was slowly creeping up but not enough to concern me. But then I hit a slow down. After getting through it I dropped down a gear and helt it around 2800 rpm to get up a hill. That's when the needle went near the red and the idiot light came on. I pulled over to the side and shut the engine off to let it cool down. Popped the hood and it was damn hot. Smoke coming off from some diesel on top of the heads. There cause I just bled the fuel system.
I didn't notice any extra coolant in the overflow tank. The top radiator hose was hot and pressurized. The power hose was cool to the touch. Didn't notice any leaks. The radiator was hot at the top, and cooler at the bottom but still noticably warm. The lower hose does have a spring in it so it isn't a hose collapse issue.
After it cooled off, I popped the cap. Still had some pressure on it and the coolant level seemed fine. No oil in the coolant either. So I started it back up and got goin again. It seems fine now. But I'm also being sure not to get too far into the RPM.
I'm planning to get a motorcraft thermostat and replacing in any case but was wondering if that sounds like the cause or if I should be checking for anything else?
I'm using the factory gauges and it seems to be running a little hotter in general. The needle rides at about 12 o'clock where it would stay around 11 when I first got the truck. It has an aftermarket aluminum radiator and I just replaced the fan clutch. The condition and manufacturer of the thermostat is unknown.
I was driving on the interstate unloaded this morning keeping around 2200 rpm and the temp was slowly creeping up but not enough to concern me. But then I hit a slow down. After getting through it I dropped down a gear and helt it around 2800 rpm to get up a hill. That's when the needle went near the red and the idiot light came on. I pulled over to the side and shut the engine off to let it cool down. Popped the hood and it was damn hot. Smoke coming off from some diesel on top of the heads. There cause I just bled the fuel system.
I didn't notice any extra coolant in the overflow tank. The top radiator hose was hot and pressurized. The power hose was cool to the touch. Didn't notice any leaks. The radiator was hot at the top, and cooler at the bottom but still noticably warm. The lower hose does have a spring in it so it isn't a hose collapse issue.
After it cooled off, I popped the cap. Still had some pressure on it and the coolant level seemed fine. No oil in the coolant either. So I started it back up and got goin again. It seems fine now. But I'm also being sure not to get too far into the RPM.
I'm planning to get a motorcraft thermostat and replacing in any case but was wondering if that sounds like the cause or if I should be checking for anything else?