ISX FAN CLUTCH

Think it died. Friday the 13th lol.

It stuck on all day Friday. 500 miles or so.
Saturday stuck on about 5 miles into the day for about 200 miles, then would pop on off at unusual times.

Outside temp on these days was upper 20's, windy as hell.

Today warmer, didn't come on once. Even at about 210 water temp. Or when I used the jakes. Nothing.

I thought it was supposed to lock on when it died?

Got about 1000 miles to go, gonna go at night when it's cold, wanna get it home.

Any suggestions?

 

Well I have a new solenoid with me. Lemme see if it spins. With key off, it should not spin correct?
Solenoid is NC, and when told puts air to clutch thus disengaging it correct?
The wires going to that connector are taught as piano strings.
I'm on a tight run, and can't afford to F this up.
So if I can make it up hills tonight gonna limp her home.

Have tools as well.

Lemme see if spins.

 

Fan does not spin with key off.



I truly suspect sensor or wiring.

 

Fan spins freely with key on, and I can here the air exhaust when power down, clutch is rengaged.

Temp sensor?

I replaced the hi limit sensor on the AC line about 6 months ago also.

 

Would a passive regen cause any of this?

 

I'm paranoid about snapping those air lines. They're pretty dang short as well.

Going through some big truck towns, might see if someone can replace this solenoid.

I hate to go down the path of all new wiring, sensors, fan clutch, might as well in frame it while we're at it, at a strange shop.

 

See this is what I don't want in this J parking lot, getting dark, Ooooops yanked that out, now I'm F.

If I pulled the control plug from the selonoid it would stay engaged though right?

That's what I'm going to try to get me home if I have too when it gets hilly.