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Date: Tue, 17 Sep 2002 13:03:56 -0400
From: KeithG <noonenopsamspring.com>
Subject: Re: Cruise control


Dale, the speed sensor does not work as a voltage device, it is frequency device. As you speed up, its frequency increases. It makes perfect sense that the square wave increases as the duty cycle increases to a point that it doesn't seem to go up any more. I have a DMM which has frequency on it. I think that you need one of these or an oscilloscope to see if it is working properly, but from what you have said, it sure seems like it is OK as these generally work or don't work. The sensor is part of the speedometer. KeithG Dale O wrote: > I finally figured out that the speed sensor to the cruise control is > not operating correctly. It goes from 0 - 5.88V and stops there > (maybe 40mph). At speeds beyond that it stays at 5.88V. Can anybody > tell me where it's located and if it's behind the dash (please tell me > it's not!!!), how to replace it? > > Thanks! > > > osterndnopsam.com (Dale O) wrote in message news:<758a984c.0209070640.3afc02e0nopsaming.google.com>... > >>Thanks for the sight. A lot of great info there. I pulled the >>control mod and checked for poor solder joints, cracks, or fried >>components but all looks good. I'm going to tackle it now using his >>advice and see what I find. >> >> >>KeithG <noonenopsamspring.com> wrote in message news:<3D78FE5B.6060806nopsamspring.com>... >> >>>see www.townsendimports.com -> technical docs, electrical, cruise. >>> >>>KeithG >>> >>>Dale O wrote: >>> >>>>Hope someone can help me out with a cruise control problem on my '87 >>>>9000T. Cruise will not work at all. Fuse OK. Tested switch on stalk >>>>and looks OK also. Vacuum pump not working (it is operational though) >>>>and signals do not seem to be getting to it (no 12V or control). I do >>>>not have a wiring diagram, so I'm troubleshooting blind. Does this >>>>sound like a bad module? Any way of testing? >>>> >>>>Thanks! >>>> >>>>Dale Osterndorf >>>>osterndnopsam.com >>>

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