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Old 04-17-2014, 11:48 AM   #1
Another User Name's Avatar
Join Date: Mar 2014
Posts: 8
Question Cruise Control Failure

My '97, Manual Tranny, HAD cruise control that once worked. It hasn't for years and so I am now asking is there anything I can do to repair it? Or is it not worth the $$ since I have become used to being without it....?

The cruise just doesn't engage at all when I try to use it. Anything I can do to determine why it is inoperable: Electrical, Vacuum, Switch, Fuse???

It would be nice to have it back. HELP.

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Old 04-17-2014, 12:50 PM   #2
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Location: Nashville GA
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Welcome to the forum. I didn't realize cruise was even available on a 97. Does your horn work? The reason I ask is it could be the clock spring, especially if the Jeep has been rained on with the top down or driver's side window open. Also check fuses and maybe power to the unit and of course, the switches on the steering wheel.

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Old 04-17-2014, 02:15 PM   #3
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sounds like a vacuum issue to me.

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Old 04-17-2014, 03:52 PM   #4
Join Date: Apr 2013
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Does the cruise light illuminate on the dash when you hit the on switch (before you hit the set switch)

If it does not come on and bulb is not burnt out problem is switch or clock spring with switch being most likley

vacuum not involved until you get to point of setting a speed so if light not even on when with key on you hit on switch start there.
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Old 04-23-2014, 03:04 AM   #5
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Cool Replacing Cruise Switch

So how do I replace the Cruise switch? I remember the cruise light working and failed when the the control switch failed. Also, could the switch fhave been damaged when my IID was installed?
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Old 04-23-2014, 07:39 AM   #6
Join Date: Apr 2013
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Always verify function or lack of function before replacing

Test resistance with meter after you pull switch

The switch price new is crazy and when I bought a new pair from Chrysler one was only marginally functional but at the you pull it I got used cheep and it is 100% they are different early TJ vs late TJ but both types can be found on grand Cherokees of different years

Removing switch is just removing pad then remove screws and unplug a 2 minute job
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Old 04-24-2014, 12:38 PM   #7
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The horn works, the light worked I believe, but it was a LONG time ago. I should add that my cruise control assy. is NOT on the steering wheel: it stands alone - off of the left side of the steering column. It looks much like the windshield wiper assy. There is a button to turn system on and then you roll a speed set ring forward or backward depending on the action desired: speed set; coast; resume, etc...

So, how do I test to determine what I need to replace?
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Old 04-24-2014, 03:07 PM   #8
Join Date: Apr 2013
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Then it is not a OEM cruise control but instead some aftermarket unit

(I looked at 97 FSM to make sure it had same steering wheel switches as 98)

Therefore unless you find the exact aftermarket cruise control maker and model you are kinda in the dark.

Check wires and vacuum connections and throttle connection try to find a place to download the install instructions for your aftermarket unit.

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