Cruise Control and Cold Weather

[Boaring1961]

Since I bought my 2005 CTD used in 2012 I have had the occasional issue with the cruise control randomly stop working. A while down the road it'll start working again though.

However, on a recent trip where I had to park the vehicle over night the temps dipped below 25 degrees. That morning when I got on the road it was still below freezing and I tried using the cruise control and it wouldn't engage at all. As I kept driving it warmed up as I dropped down into Sacramento Valley and the cruise started working again.

What do you guys think the issue is?

 

[AnOldBiker]

Best thing I can recommend it take it to someone with the proper electronics to verify what's wrong.

I had a car a few years back, and the cruise just rammed up for no reason at all. No matter what I tried, I couldn't figure it out. The local shop said the board was BO and I went to a wrecking yard to find another for the heck of it and for $50 bucks was running proper again. It isn't essential for running daily, just a added plus for comfort. But guessing will drive you nuts.

 

[cerberusiam]

You are probably looking at an ECU replacement since the CC is all in the software in your truck. There is a remote possibility of an APPS issue or maybe some bad contacts in the buttons\switches or wiring also.

 

[mwilson]

Would that '05 have the little electric vacuum pump???

Also, check your brake lights and switch.

Mike.

 

[DonFitzwater]

As mwilson said, check your brake light switch.

 

[Boaring1961]

I was wondering about a little vacuum pump too especially in light of it not working at all in the cold. I was thinking the frozen rubber hose wouldn't seal right if it was already in bad shape.