Cruise Control Not Working?
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
I can tell you what it was on mine. The CPP (clutch pedal position switch) The gas trucks can do a test using a flashing light on the dash. The diesel takes a scanner.
Pull off your CPP and see if you have broken springs in there and it looks like this
If it does, time to drop about $30 - $35 on a new CPP.
Pull off your CPP and see if you have broken springs in there and it looks like this
If it does, time to drop about $30 - $35 on a new CPP.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
It's the long plastic thing on the hydraulics. If you get under there and look up behind the dash you will see a rod that attaches to the the clutch pedal. The CPP slips on that rod and you can move it back and forth with your hand. It's got a wiring harness that plugs onto the side of it. There's a U shaped plastic piece that holds it on the rod. Remove that, unplug the wires, and you can look at the springs.
If there's a lot of tension in the CPP and it stays up against the firewall pretty good it may not be your problem. I was able to push mine back (toward the drivers seat) and it did not always snug back up to the firewall.
If I'm rambling and don't make any sense let me know. I'll go outside and take a picture of mine so you can see.
If there's a lot of tension in the CPP and it stays up against the firewall pretty good it may not be your problem. I was able to push mine back (toward the drivers seat) and it did not always snug back up to the firewall.
If I'm rambling and don't make any sense let me know. I'll go outside and take a picture of mine so you can see.
Mountain Pass
Joined: Feb 2004
Posts: 152
Likes: 5
My '02 stopped working due to a failed pressure switch - located on the master cylinder. There is a fusible link in the harness to the switch. Needed to replace harness and switch - very easy & inexpensive. See my prior post.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Gas or diesel engine on yours?
Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
I had the cruise control deactivation switch start leaking (pressure switch that xd2200 is talking about ) in my 96 F250 it was a PSD and I was having a on again off again problem with the cruise I changed the switch, the cruise problem was gone . The switch is covered under a recall in gas trucks but not in the diesels.
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Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
There's a good possibility that it's not the CPP, but since it takes a scanner to run the switch test on a PSD I was trying to come up with things he could check for free before he started throwing money at it.
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Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
I never would have thought about the CPP that's a good idea. I just wanted to point out about the switch because of where it is you don't look at it all the time and it could be leaking and he doesn't know it.
Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
Heres what can happen in a gas truck this one was a V10 when that switch goes bad . In a gas truck the switch always has power to it even when not running . This truck caught fire in the PM on a used car lot out in the sticks good thing the FD was right across the street. 
Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
I agree but I think they figure that if the truck is running your in it and if it catches fire you will be the first to know. I like posting that pic because alot of people got that recall and didn't get it done, there are a few folks that had there house or shop burn down because of it!!!!
