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Re: Troubleshooting cruise control
Posted by Carl [Email] (more from Carl) on Wed, 17 Oct 2001 00:37:37
In Reply to: Troubleshooting cruise control, Larry Vermeulen, Tue, 16 Oct 2001 21:21:19
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Easy way to check vacuum line integrity, vacuum actuator and connection to accelerator is to pull the vacuum line off of the cruise control pump. Draw a vacuum in this line using one of those MityVac blake bleeding pumps. You should be able to see the throttle linkage moving at the throttle body. You should also be able to hold a vacuum in the line indefinitely. If it quickly goes away you likely have a leak in the line. I'd say the number one cause of Saab cruise failure is the vacuum line getting old and cracking. The cruise control vacuum pump is located in the driver's side fender well, right above the charcoal cannister. It has two plastic pipes sticking out from the front, one white, one black. Only one has a hose coming from it. This is the line you need to disconnect. The vacuum line from the pump runs along the top of the fender under the main wiring loom, and then goes under the fuse box. Then it takes a turn into the engine compartment, and from there disappears through the firewall.
posted by 24.180.11...
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