210 isnt really that hot if its warm outside, 220 and up i would start to worry. that said nothing will cool a engine down like a larger aluminum radiator.

 

well at night it usually runs about 170 to 180

 

sounds like your cooling system may be at the edge of its ability, and the extra heat during the day pushes it over.

 

is there any difference between the 4cyl. rad and 5.0 rad i think mine is a 4 cyl. one

 

does anybody know if the rads are different ?

 

the rad i had in my 2.3l ranger was pathetic.....idk if there the same for the mustangs, but theres no mistaking how tiny it is, half inch wide maybe, it was puny!

 

idk much about the the cooling system and want to know if this is normal

http://s339.photobucket.com/albums/n...Picture139.flv

 

UH OH!!!!!!!


looks like a blown head gasket!!!!!


bubbling = no bueno!!!!



EDIT: or is it boiling from being to hot?!

you need to get that fixed, that could be pretty serious
how hot was the car when you took this video?

 

that was my first time crankin it up today and wasn't running very long

 

if it wasent hot, id say blown head gasket.