cold start high idle switch

[bubbahzanetti]

I have a 88 7.3, non turbo... does anybody know where the temp switch is that controls the high idle and timing advance? I have no power to that circuit on cold starts. Thanks!
BZ

 

[bubbahzanetti]

hmmmmmmmm

HMMMMMMMMMMMM, it's a mystery.....

 

[Al_E]

in the head rite behind the thermostat housing (upper radiator hose)

 

[bubbahzanetti]

The mystery solved!

Gracias, I'll look there in the morning, but I don't remember seeing any type of sensor there, I'll have to look closer. Screw in brass sort of thing with wires, is it?

 

[suv7734]

Screw in brass sorta thing with '2 tabs' on top of it. One is +12volts in, the other +12 volts out. Can't remember the temp for cutout right now.

 

[typ4]

112 degrees

 

[bubbahzanetti]

Sweet! This forum rocks!! Thanks, fellas!

 

[85IDI]

can a switch be wired in to have manual control of it

 

[f-two-fiddy]

Run a jumper wire from the + battery to the High Idle Solinoid. It'll tell ya right away if the soliniod is operational.

 

[dave186]

the sensor on mine didnt work and it was like $50 at the ford dealer so i wired a switch on the dash for it. the temp switch simply completes the circuit when its cold.

 

[argve]

The temp switch activates two solenoids - the high idle and the timing advance.