1993 F-150 Cruise Control

Check for a burnt out brake light bulb. That was my problem quite a while back.

Cheers, Lawrence

Check to see that all brake lights including the third one are working properly. A blown brake light can cause feedback to the brake switch that can signal the cruise control to disengage.

After reading the advice from both of these responses, I was wishing it could be as simple as replacing a burnt out light bulb. No such luck as both rear brake lights and tail lights work perfectly and the all the turn signals function properly as well. Here is kicker, I do not have a third brake light. There is a rear facing cargo light at the top of the cab; it works to light up the bed.

I really appreciate your troubleshooting advice. Dang I wished it worked. That would have been an inexpensive fix.

Davïd Greenville, NC

With my '87 e350 I need to hold the button on the wheel down for at least

I have a 94. I get a flashing light on the dash showing me the air bag. I lost cruise and the horn. I am told there is a piece called a "clock spring" under the air bag that needs to be replaced. I have not done it yet - was told it is an $80 dollar part. Does anyone know if I can rework one from a junk yard? Your 93 may be different.

(top posted for your convenience) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Keep the whole world singing . . . . DanG (remove the sevens) snipped-for-privacy@7cox.net

You may want to check in the servo to be sure the cable has not disconnected. There was a TSB on that vintage. It happened to mine. It was a 5 minute fix to correct the proble. Sorry, I do not have access to the TSB. Maybe someone else here has it.

Does the cruise control disengage when the brakes or the turn signal is applied or, does it simply refuse to engage at all?

Simply refuses to engage at all.

Davïd Greenville, NC

Servo? Where is the servo? And where does the cable go to and from? If I can find it, I will check it out.

Davïd Greenville, NC

Servo left side of engine compartment. Cable from there goes to throttle body. Problem is inside servo where cable is attached. Other cable to throttle body is to accelerator pedal.

By golly we may be on to something. I found the cable & servo. The cable was attached and appeared to be in working order. I disconnected the electrial plug and removed the top, because you said the " Problem is inside". There are gears and some sort of clutch actuator. I moved the accelerator cable back and forth while looking inside the servo. I did not see anything reacting to the cable movement.

Next I proceeded to remove the cable attached to the servo. While lifting the cable off the servo housing, I saw a spring. Not knowing what I was doing, and before the spring came unattached, I put the cable back.

Now I'm seeking advice on what I should do next. I don't want a 5 minute task to turn into 5 hours and wasted expense.

Thanks for this suggestion,

Davïd Greenville, NC

I am sorry I can't help you any further. It has been several years since I was inside one of these. A ford dealer near you may still have the TSB on this. IIRC, there was a small part replacement and a simple reconnect of the cable w/o removing the servo from the vehicle. Maybe someone else here has a better memory then mine or, even the TSB # to look up.

Regards Lugnut

Thanks for the reply. I am suspecting I'm in the right area to correct my cruise control problem. When I was disconnecting the cable from the servo, I noticed there wasn't anything between the cable and the housing except for a small spring. My suspicion tells something has to activate the clutch thingy for the gears; unless it's an electro magnetic signal.

From what little I know, there is the appearance to cable is not driving anything inside the servo or vise-versa. It looks like something has to be reconnected and/or a *VERY* small part needs to be replaced.

I conducted an internet search for TSB's and cruise control problems. I haven't find it yet, mostly due to yielding so many results from the Ford cruise control fire problem.

Any help would be greatly appreciated.

Davïd Greenville, NC

==== I've never asked you a question Lugnut. (I'm a lurker) But your replies are intelligent and respectful. Thanks, GeoffP

as i stated in another ford group, the connector for the cable to the intake might be broken and not pulling right. I had this and a rubber band now holds the broken connector onto the ntake linkage. old john