1996 ford mustang overheating

micjoe

New Member
Sep 26, 2006
34
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Connecticut
I have a overheating problem with the 1966. After driving about 10 min the raditor starts to boil and steam comes out of raditor cap.

I just replaced the thermostat and it still does the same thing. I did notice I have a small crack in the raditor. Will these still cause overheating?

What is most likely the cause, or should i just start with replacing the raditor cap?

I ran the engine for about 10 min with the cap off, and no leaks on raditor, and no overheating from what i can tell, however i tightend the cap somewhat and the temp gauge went up and same thing.

Should i just do the raditor too, or try a 30 bucks for a cap?
 
Is there a spring in your bottom radiator hose?

There isnt on mine, and its getting hot to. I found the spring that goes in the hose last night on Mustangs Unlimited website.

Sounds like when you put the cap on the suction it creates is causing the bottom hose to close off.
 
Man I`m just guessing anyway.

I was at a car show Saturday night, and asked a guy that I consider to be a top notch mechanic how to track down my cars heating problem. His reply was to go to my local hardware store and ask them to trouble shoot this problem for me with one of those point and shoot heat guns that gives you the surface temp just by pointing at it. You can tell if the radiator water is hot versus the motor being hot, you can even isolate hot spots on your heads. You can also use it on anything that creates heat. U joints, wheel bearings, your rearend, and if you have headers, you can tell how hot each cylinder is in relation to exhaust temp.

Sounds like a pretty simple solution to me, I`m gonna try it myself.
 
The 66 Ford cooling systems ( and other years as well in the 60's) left a lot to be desired. The radiators were too small, the fans were inadequate, many had no fan shroud. And to top it off, all Ford head gaskets can be installed "backwards" further compounding the problems. The gasket deal can be spotted easily, there should be a portion of gasket poking out on the lower front corner of the head with most gaskets. If there's no excess gasket sticking out, chances are the gasket is on backwards and the coolant is shortcutting back up into the heads and intake, instead of being routed to the rear of the block. Running without a thermostat will also make em run hot.
 
Got mine fixed

It was a $3.95 spring in the lower radiator hose, it runs 180 to 190 now. FYI, you do not have to remove the hose from the motor to put it in, it slides in from the radiator end.....dont ask me how I know that......

YEA!!!!