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How do you repair a cruise control that continues to accelerate when you set it on a 1989 Vanagon Wolfsburg?
Wiki User
∙ 16y ago
The CC system on a Vanagon is vacuum actuated; overly complex and thus failure prone IMHO. For fault you describe I'd start by replacing the CC control module; located (on my '91 Westy) behind the glove box (as in remove the glove box to get to it). There's only a few components to the CC system; the vacuum pump (engine compartment); the control module (indicated above); and the vacuum breaker switch (under the brake pedal). Vacuum pump and/or vacuum breaker switch failure (to include hoses) will result in decrease in speed or inability to set at all (won't hold a vacuum); continuing to accelerate could be caused by faulty control module. Bentley (factory) manual has good fault logic tree for troubleshooting system; somebody might have posted same to internet. Suggest Bus Depot or Go Westy for best internet parts prices (w/quality). Good luck!
Wiki User
∙ 16y ago
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