I have a feeling my thermostat went out....the car heats up right away even after filling up the rad. I felt my bottom rad hose and its some what cold compared to the top one the top one is really hot, could this mean the thermostat is not working properly?

 

sounds like its either your thermostat or waterpump. hopefully its just the thermostat

 

is the coolant overflow reservoir filling up? is the upper radiator hose swelling?

 

could be... replace it with a failsafe thermostat

 

hmm.. when my thermostat went out that car wouldn't warm up... not the opposite. Might aswell replace it. Cheap insurance in the future.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRXDrew &raquo;</TD></TR><TR><TD CLASS="quote">hmm.. when my thermostat went out that car wouldn't warm up... not the opposite. Might aswell replace it. Cheap insurance in the future.</TD></TR></TABLE>
That's because yours was stuck open = overcooling, his is stuck closed, coolant can't get through, thus overheating

 

you can test it see if it's working or not
1. remove the Radiator pressure cap from a cool Radiator
2. start the engine, let it warm up and watch the surface of the coolant
3. when the coolant begin to flow, this indicates the thermostat has started to open, if the coolant does not begin to flow, your thermostat is closed (stucked)
4. if the engine is cold and coolant circulates, this indicates the thermostat is stuck open and must be replace.

 

yes the upper one is swelling