Cruise control stopped working on 1993 Ford Econoline van - can't set speed. What usually goes wrong? What should we check? Is there a wiring diagram available?

The blower motor relay is located above the right front headlight , also there is a fusible link which is a fuse but is in wire form , make sure to also check that and see if it is brunt.

Here is a diagram picture of it to help you find it, some of this had a blower resistor but i think that this year they used the relay instead to control the blower speeds. good day hope this is helpful.

If the switch is replaced,then it can be wiring issue or faulty cruise control board.But as the switch is replaced,get the voltage at the switch tested to confirm the switch is actually receiving voltage.If no voltage received at switch power supply wire then ,apply external 12 volt power to the cruise control switch wire and then see if cruise control comes ON.If yes,then you know wiring is issue.
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On this case, to troubleshoot this problem, there are solved help links. Click the link directly and refer the details to solve this problem yourself, with help of diagrams: ------

Ford ranger cruise control not working? http://technoanswers.blogspot.in/2012/02/ford-ranger-cruise-control-not-working.html

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Horn and Cruise control quit working?

http://howtobyme.blogspot.com/2011/11/horn-and-cruise-control-quit-working.html

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Horn and cruise control not working on Plymouth Grand Voyager?

http://howtobyme.blogspot.com/2011/11/horn-and-cruise-control-not-working-on.html

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Horn and Cruise control quit working on 2003 Jaguar S-Type?

http://howtobyme.blogspot.com/2011/11/horn-and-cruise-control-quit-working-on.html

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Cruise Control stops working, Excessive cranks to start the engine and RPM goes max 2500

http://whoisbyme.blogspot.in/2012/07/cruise-control-stops-workingexcessive.html

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Cruise control stop working on 1994 Ford ranger?

http://technoanswers.blogspot.in/2012/02/cruise-control-stop-working-on-1994.html

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Cruise control not working?

http://schematicsdiagram.blogspot.com/2011/12/cruise-control-not-working.html

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1996 Ford Explorer: Cruise Control Wiring Diagram?

http://schematicsdiagram.blogspot.in/2012/06/1996-ford-explorer-cruise-control.html

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These will help.

Thanks.

Click image for zoom...



Fig. 9: Emission control system-1993 gasoline engines



Fig. 10: Emission control system-1993 diesel engines

Hope helps.

It may be the cruise control module itself, it is usually located in the engine compartment.

Hi ,
More than likely you have a vacuum problem either a vacuum hose is off or cracked or the vacuum servo for the cruise control is bad also check the fuses. Have a good day.

Try to look in this link: motorcraftservice.com_VEHICLE=E-150

Hope helps.

THERE IS 2 CABLES ON THE THROTTLE BODY ONE IS YOUR GAS PEDAL AND ONE GOUS TO YOUR CRUISE CONTROL JUST UNHOOK THE ON FOR YOUR CRUISE. THE FUSE BEING OUT MAY NOT STOP THIS PROBLEM BECAUSE IT IS PARTLY VACUUME OPERATED

Vehicles involved in the recall include the following:

1998-2002 Ford Ranger
1992-1997 Lincoln Town Car
1992-1997 Ford Expedition
1992-1997 Mercury Grand Marquis
1993-1998 Lincoln Mark VIII
1993-1995 Taurus SHO
1999-2001 Ford Explorer
1999-2001 Mercury Mountaineer
2001-2002 Ford Explorer Sport
2001-2002 Ford Explorer Sport Trac
1992-1993 E150-350 Vans
1997-2002 E150-350 vans
1993 Ford F-Series pickups
1993 Ford Bronco
1994 Mercury Capri
2003-2004 Ford F0150 Lightning
1995-2002 Ford F53 motor homes.

It is either the speed sensor, the wireing in between ot the speedometer module it self. The sensor sends pulse train signal to the speedometer module and there it drives the speedometer and is divided in frequency by about 7 and feed to the computer and the cruise control. When the signal drops the Engine management computer thinks the speed is real slow and raises the transmission pressure.

In the one I had it was a cold solder jooint on the bacjk of the speedometer module itself but this was the divided output and the speedometer itself still worked. The easyest part would be the sensor that mounts on the rear axile I believe and should cost less than 30.00 dollars. If not that thebn it's the wiring or the speedometer module electronics..