SkipBurney
Full Access Member
The cruise control on my 89 F 250 dosent work at all Does anyone have any suggestions as to where I should start to look
I forgot about the vacuum. Another common area.On mine the cable at the pump came off. Also it is ran by vacuum. Check the hoses
I had the same problem, long ago, with my '86. As I recall the horn and the cruise control share a relay which, on the '86, is located under the dash, about mid-way across. How much that may have changed by 1989 I can't guess, but it's worth a thought. If it was the same, test the horn.
Also, I have 2 diagnostics I'd be happy to send you. They're apparently too large to post here. If you'd like them send me an email address by PM here on the site.
Just checked and my horn worksThank you Sir my e mail is [email protected]
My fix was too easy. I went through and started looking at voltages. Then I removed and cleaned/greased all grounds. behind kick panels and under hood front and rear as well as the end of the bed. Errant voltages went away and cruise came back to working.
Also, I have 2 diagnostics I'd be happy to send you. They're apparently too large to post here. If you'd like them send me an email address by PM here on the site.
I know that they're "supposed" to, but I had a brand new 1995 ****** with a 5 speed that did the same thing.Downside,it doesn't kick off the cruise when I downshift on the manual.