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1993 Buiick Lasabre engine revs on its own ?

Speeds up to about45 or 50 then levels out. Like it was on cruse control , but it does not work.84K Mi.

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  • Cars & Trucks Master
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Did you disconnect the cruise contron at trottle body sometime they stay on and that give you a very high idle and when you put that in drive it flyes

Posted on Apr 08, 2015

Testimonial: "Yes done all that and took it to an analyser no help there. Now have it at a dealer. Thanks for your concerns. Larry"

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Posted on Jan 02, 2017

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1 Answer

Where is the fuse for the cruse control on a 2002 jeep grand cherokee


In the fuse box under the hood. If it's not working it's most likely a vacuum leak. The system works by a vacuum diaphragm that pulls on the throttle. Jeeps are notorious for vacuum leaks.

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Cruse control will not turn on


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It sounds as if the clearance that the bearings normally run in have been surpassed and need to be replaced. Higher engine revs will supply extra oil which will overcome any small discrepencies but constant running at this stage will result in faster degradation of all engine components concerned resulting in a more expensive repair. Shes basically worn out.

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1993 G20 Van- Engine shuts off at highway speeds


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Engine revs to full throttle while driving?


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Cruse control


check the fuse for the cruise control (CC). Secondly, use a meter to make sure the switch is good underneath the brake lever. There are typically two switches underneat the arm; one controls your brake lights and the other controls the on/off [cancel] feature of the CC.

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