wjk_glynn

Hi folks,

I was wondering if its possible in the normal run of events for the coolant in the radiator to be hotter than the coolant in the block?

The reason I ask is that my cooling fans kick into high speed mode (when the 102C radiator switch closes) yet my dash guage says the block temperature is ~90-92C.

(See <a href="http://forums.pelicanparts.com/showthread.php?s=&threadid=82727" target="_blank">http://forums.pelicanparts.com/showthread.php?s=&threadid=82727</a> for a nice diagram of the temperature guage)

Thanks.

Karl.

Toolmaster

Karl -

Not only in the "normal" course of event - but ALWAYS - assuming a well functioning cooling system. The waterpump pumps cooled water from the radiator into the block, where it picks up heat, and then flows back to the radiator to get cooled again. The hottest water is in the block - then to the radiator. Since the radiator is DESIGNED to release heat - it does a good job at radient heat loss, whereas since the block is thicker, it seems to be "less hot."

Make sense?

wjk_glynn

Hi Jay,

So does the dash guage show the temperature of the metal or the coolant in the block?

Karl.

SidViscous

Find the sensor. If the end of it is wet and slimy green it's reading the coolan.

I've seen both kinds in different cars.