cruise control doesn't work
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Joined: Feb 2007
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cruise control doesn't work
i've got a 92 250 7.3l 5speed and my cruise control doesn't work. it hasn't since i've owned the vehicle. are there any recources i can look at to troubleshoot? how does it work? what are some common causes for the cruise to fail?
Senior User
Joined: Feb 2007
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From: Pukalani, HI
Check the fuses and the switch for the clutch pedal (it's similar to the brake switch). If it's stuck in the on position the cruise would think you have the clutch in all the time.
Tuned
Joined: Apr 2004
Posts: 259
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Does your turn signals work properly? Both sides? If I remember correctly my cruise control quit working the same time my turn signals quit on one side. No brake lights or cruise control. Power for the cruise control goes through the turn signal switch, once it was replaced everything worked again normally.
hugger94
hugger94
Elder User
Joined: Feb 2007
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From: Mississippi
one more thing to check is the wiring harness where it hooks to the speedo gear at the transfer case(if it's a 4x4) to make sure it's hooked up. that was my trouble(among other things) but the harness had also been pinched in a couple of places and broken some of the control wires. hope this helps with the troubleshooting.
speedrdr
speedrdr
Trailering
Joined: Jun 2006
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Check vacumm pump,and reservoir
Hi, this is my first time posting in the forum , I had a similar problem when I bought my truck and it was a very weak vacumm. The vacumm pump was going bad and also the reservoir can was all sucked up like a crashed soda can,(so it wasn't storing enough vacumm to support the Brakes, A/C vent lines, Cruise Control); Yes! I had some scary moments with stiff brakes. The vacumm pump was "tired", so I replaced it and fabricated a larger reservoir with a PVC pipe and two Caps and Problem Fixed. Now everything works well.
If you buy the Vacumm pump make sure you get the right one , there are two kinds for the truck and you have to be sure it fits the pulley correctly.
Hope this helps,
Manuel.
If you buy the Vacumm pump make sure you get the right one , there are two kinds for the truck and you have to be sure it fits the pulley correctly.
Hope this helps,
Manuel.
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From: Cincinnati Ohio
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Trailering
Joined: Jun 2006
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The Reservoir is still needed.
You still need the reservoir for times of high demand, ie. like having to pump the brakes multiple times in traffic, and changing air direction in your air conditioner. Those times where you use more vacumm than the pump can produce immediately, that's the reason for that storage.
Manuel
Manuel
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