sender in bottom of radiator?

88 2200 carb. whats the sender in the bottom of the radiator for? im thining like a choke turn on/off deal? it has 2 big poles sticking out of it. mine was broken off so i replaced it. i changed it and didnt notice any kind of driveability difference. any body know?

it's the ptc heater switch- works with the choke

if that sender wasnt hooked up would that cause the choke to stay applied and make it run rich all the time?

It is a PTC switch. LOL, But it is actually an Electric fan turn on switch. I just went through this. It does nothing. Mines been diconnected for two years, then i bought my weber and just capped the wires.

Go to your local autoparts store, in thier computer it will say "Fan turn on switch"

Edited: 5/11/2006 5:18:04 PM by droppedforlife

Originally posted by Karathos



It is a PTC switch. LOL, But it is actually an Electric fan turn on switch. I just went through this. It does nothing. Mines been diconnected for two years, then i bought my weber and just capped the wires.

Go to your local autoparts store, in thier computer it will say "Fan turn on switch"

you're kidding...i broke mine when i drained the radiator and someone said i had to have it for the fan to work...if i'd of known it was useless i wouldnt have spent $50 on a new one.

iv never seen a mazda with an electric radiator fan. please explain.