Lightning Rodder banner
1 - 16 of 16 Posts

·
My DD is a Crown Vic
Joined
·
355 Posts
Discussion Starter · #1 ·
Im out in the garage doing a IC and radiator flush, I cleaned the IC pump drained what fluid I could in the heat exchanger and radiator, filled back up with water, started the truck to let the water circulate and now its getting hot, I was watching the gauge and also the resiviour to see when the thermostat opened so I could shut it down to let cool and then drain again but the upper radiator hose isnt getting hot, is my thermostat sticking shut or is it something else, it never got hot before, thanks guys.
 

·
Undisputed Re-Post Master
Joined
·
14,354 Posts
Air in the system still?

If your thermostat was stuck, the upper hose would have fluid in it, and it would be hot.

You did remember to close the drain plugs, both of em? :p

So your saying your motor is overheating, yet the upper hose is cool?

Thermostats are easy to take off.
You could always take it out and make sure its working properly.
Throw it in a pan of boiling water set to the temp its supposed to open up at, and see if it actually opens.

Water pump went bad possibly.... which is kinda odd if its the mechanical one.
 

·
Premium Member
Joined
·
2,145 Posts
I'd say air in the system too...
 

·
My DD is a Crown Vic
Joined
·
355 Posts
Discussion Starter · #5 ·
Yea both drain plugs are closed, the resivour is full and didnt drop at all, it may be air, how would I get it all out, and yes the upper hose didnt get hot
 

·
Undisputed Re-Post Master
Joined
·
14,354 Posts
Yea both drain plugs are closed, the resivour is full and didnt drop at all, it may be air, how would I get it all out, and yes the upper hose didnt get hot
Get the front of the truck lifted, jack stands, hill, ramps, whatever.

Turn the heat on to hot, and rev the engine up. Hold it there for a few minutes.

Should get most the air out.

Lifting the front of the truck is per-say not necessary, but it helps.

oops forgot to say leave the cap off.
 

·
Registered
Joined
·
5,570 Posts
turn the truck on, take the caps off and let the bubbles come out

thats how i did it, maybe shag can correct me here im not 100% sure of my method but it does work for me

and it will also show you if you need to add fluid or not
 

·
My DD is a Crown Vic
Joined
·
355 Posts
Discussion Starter · #12 ·
It worked, you guys are awesome, thanks!
 

·
Registered
Joined
·
2 Posts
Air in the system still?

If your thermostat was stuck, the upper hose would have fluid in it, and it would be hot.

You did remember to close the drain plugs, both of em? :p

So your saying your motor is overheating, yet the upper hose is cool?

Thermostats are easy to take off.
You could always take it out and make sure its working properly.
Throw it in a pan of boiling water set to the temp its supposed to open up at, and see if it actually opens.

Water pump went bad possibly.... which is kinda odd if its the mechanical one.
W
 
1 - 16 of 16 Posts
Top