Date:         Thu, 7 Jan 1999 13:13:43 -0800
Reply-To:     Randy Bergum <organslave@EARTHLINK.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Randy Bergum <organslave@EARTHLINK.NET>
Subject:      Re: Cruise Control not working
Comments: To: Mike <mayfly95@PAONLINE.COM>
Content-Type: text/plain; charset=us-ascii

The cruise control is not complex, and it is covered in my Bentley manual.
    There are two systems at work here:
    1.  Vacuum - Check the integrity of the lines and vent valves by unhooking
the line on the vacuum pump, collapsing the servo diaphram at the throttle
cable, then pluggin the line with your fingertip.  If the diaphram returns to
fully open - you have a leak, so find it.  If it stays put after collapsing
(expanding out a tiny bit to equalize pressure) then the airtightness is OK.
Check the pump for operation.
    2.  Electrical - Check continuity at the switches on the pedals, signal
stalk.
    Check the sender at the speedometer.
    Check the computer.
        Randy Bergum

Mike wrote:

> Todd,
> This happens frequently with both my jetta and westy, if I keep trying it
> usually will take and keep the pedal down, it also intermittantly disengages
> without touching the brake or clutch.
> I have learned to live with it.
>
> mike
> 87 westy
>
> Todd Last wrote:
>
> > I have an '88 Westy on which the cruise control stopped working.
> >
> > I would welcome any suggestions. Here are the symptoms.
> >
> > When I press the button to engage, I can feel the system pulling down on
> > the gas perdal to set the speed - but it never holds the speed.
> >
> > It is as if it starts to engage - but disengages as soon as my foot is
> > released from the gas pedal.
> >
> > Unfortunately, there is no troubleshooting info in Bently on the cruise
> > control.
> >
> > Regards,
> >
> > Todd