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Repair/Replace Cruise Control Vacuum Line S70 1998

Installed a new air pump on my '98 S70 GLT, 99K, and in lifting the battery tray out to get at the pump, the cruise control vacuum line snapped in one place and cracked in another, both under the tray. I removed a 6-8" section and used connectors to replace it with a 12-18" piece of vacuum line. Now, no CC.

Never had CC problems before this. There are no hose kinks, and the electrical connection to the CC pump is attached. The hose connectors I installed seem secure. My guess is I probably damaged the line in another spot out of sight, just because this line and so many other plastic pieces in the engine compartment are brittle with age. I read the archives and learned that no CC is a vacuum line issue at least 80% of the time, so I'm guessing that's what I'm up against.

If there's even the smallest leak in the connections I made, would that cause the CC to fail? If I just replace the entire vacuum line, as I’m planning to do, how much hose will I need and where does the other end of the line attach? Any advice or experience is much appreciated. Thanks in advance.








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    Repair/Replace Cruise Control Vacuum Line S70 1998

    Are you sure you connected the vacuum line to the proper port on the pump. One of the protrusions is a vent(not sure which). I mention this because......you know the story.
    --
    Tom 69-1800S, 72-1800ES, 96-850T








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    Solid vacuum line is essential S70 1998

    becasue the normal rubber vacuum line (the one similar to windshield washer line) is no good here. There is alot of vacuum generated by the Air Pump.

    Use the solid type. You should be OK.

    cn








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    Repair/Replace Cruise Control Vacuum Line S70 1998

    Yes, all it takes is one small leak. I have had customers give up on their turbo guage simply because they kept chasing that brittle line up the fender to where it disappears through the firewall. Typically it is a lot better shape once it is on the passenger side of the firewall but getting there is the fun part. My advise would be to by enough of the hard line and just replace all of it.

    Mark







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