[georgegeorge]

When i am driving down the highway with the cruise on. When I go to change lanes and turn on my blinker the cruse will shut off. Has anyone ever herd of this?

 

[Partsman]

Yeah, check your tail lights and the brake light on the cab. If one is out it will cancel the cruise.

 

[kirby]

When this happened to me, it was the brake light on the back of the cab that was out. Find the light that doesn't work and that will probably be your culprit.

 

[mrvmax1]

[ QUOTE ]
When i am driving down the highway with the cruise on. When I go to change lanes and turn on my blinker the cruse will shut off. Has anyone ever herd of this?

[/ QUOTE ]
Oddly enough it was the sensor on the master cylinder for me. The brake fluid ate through the sensor and it did the exact same thing as yours. It will be easy to check, just unscrew the old one and see if there is brake fluid in it. When I bought a replacement it came with the pigtail connector to prevent the fire issue.

 

[stroklund]

check the conection on ur brake pedal that was my fix