[urq] cruise

Ingo Rautenberg ingo.rautenberg at gmail.com
Mon Apr 9 11:39:48 EDT 2007


Brandon,

How did you check to see if the system holds vacuum?  The tubing can  
be OK, but the diaphram within the switch may be marginal.

Ingo

On Apr 9, 2007, at 11:36 AM, Brandon Rogers wrote:

> Guys-
> So I'm taking the car on a small road trip to Moab in a couple weeks -
> and the cruise isn't working so well.  I had it working fine for the
> trip out to CT a couple years ago - but something musta happened...
>
> The CC will engage but usually slowly loses speed.  If I ever so
> slightly "encourage" it with the gas pedal temporarily - it will then
> hold speed for a while.  So it's erratic.
>
> Tested the switches at the foot pedals with a DMM - they are fine.
> System holds a vacuum.  I think I've narrowed the problem down to the
> vacuum pump motor thing.
>
> I swapped in another - it didn't work at all.  So I swapped in a 3rd
> unit.  Turns out it is configured slightly different - I engage CC and
> it engages immediately - but it goes WOT.
>
> So I'm thinking my system is fine but need a good vacuum pump.  Any
> other thoughts or am I missing something?
>
> TIA-
>
> Brandon
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