bear91
Registered User
My high idle switch has started to not always kick off. I could just get off highway and it'll still be engaged. Anyone have any ideas on a fix for this or should I source a used one from eBay?
High idle switch
- Thread starter bear91
- Start date
When the high idle switch fails, it'll fail in one of two ways. The electric part shorts out and it'll never work, or a groove has worn in on the shaft and it's getting stuck.
Grab a tiny wrench and rotate the shaft half a turn, see if it stops doing it.
If it's still staying engaged, then it's probably being electrically told to stay on, like bad coolant sensor or wiring shorted to hot.
Grab a tiny wrench and rotate the shaft half a turn, see if it stops doing it.
If it's still staying engaged, then it's probably being electrically told to stay on, like bad coolant sensor or wiring shorted to hot.
Bad temp sensor loop?
Kdo58
Full Access Member
Cdd sells them, or you can connect a switch, or your sending unit by the fuel filter is bad...
Last edited:
Wut
Proofread please
IDIBRONCO
IDIBRONCO
He forgot the word "filter" after the word "fuel". A switch to cut off the constant power.
to add to this, the next time you experience this, keep the truck running and see if the cold advance is still on, youll hear a change in engine if its charged.
or simply use a miltimeter and find out if its a case of a sticky solenoid, or a failed switch
bear91
Registered User
I'll rotate the arm back in some, I took it out when I installed my classic diesel design up pump so hopefully it just needs to come back down some
bear91
Registered User
I can unplug the cold advanced when it's running?
Yes you can. Same with the fast idle. If you unplug the FSS it'll stall.
