Question about 1994 Dodge Grand Caravan

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Accelrates by its self?

Getting up too highway speeds the gas edal bottoms out and have to drop it in too neutral and park and shut it off. then i pull on the throtale cables and its fine, till i ress hard on it again then the smaething happends? please help me.

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The throttle cable is a thin, stiff wire in a plastic-covered sheath. The sheath is clamped at 3 points, and the inner wire moves while the sheath is stationary. ...at least, that's the way it's supposed to work. Your throttle cable is slipping, sheath and wire, at one of those anchor points. A little vibration and some oil spray, and it's pretty common for one of the cable anchors to work loose enough to slip under load. Starting at the intake, trace the throttle cable back and look for the small bolted clamp, between the manifold and the valve-cover. Back it out, clean the bolt, and put a little Permatex or Locktite on the threads...Check the curve of the clamp, and if it's going flat re-curve it with a pair of needlenose...if it looks fine, then put a tiny notch (tooth) on the inner face with a pair of **** or needlenose to grab the sheath better. Move to the next clamp, if there is one, and do the same thing. *Some engines only have the one, which i suspect is this case...and why they slip so often. The third clamp is inside, at the firewall, and a bit harder to get to...but this one rarely slips because it isn't exposed to nearly as much abuse as the first one at the intake.

Posted on May 14, 2010

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