Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: Notesfiles; site trsvax.UUCP Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!inuxc!pur-ee!uiucdcs!trsvax!mikey From: mikey@trsvax.UUCP Newsgroups: net.auto Subject: Re: Question about cruise control - (nf) Message-ID: <55200092@trsvax.UUCP> Date: Thu, 26-Jul-84 10:03:00 EDT Article-I.D.: trsvax.55200092 Posted: Thu Jul 26 10:03:00 1984 Date-Received: Sun, 29-Jul-84 23:52:54 EDT References: <2738@decwrl.UUCP> Lines: 21 Nf-ID: #R:decwrl:-273800:trsvax:55200092:000:905 Nf-From: trsvax!mikey Jul 26 09:03:00 1984 #R:decwrl:-273800:trsvax:55200092:000:905 trsvax!mikey Jul 26 09:03:00 1984 You didn't state what kind of cruise control it is. Most aftermarket units sense the speed and use engine vacuum to pull the throttle and thus maintain speed. If you have a vacuum leak, it could cause the range of the unit to vary, giving the symptoms you described. Most factory units are simpler and a vacuum leak is even more noticeable. The aftermarket units with a solid state control box will usually not be as bad on a vacuum leak. They usually have an internal ajustment for "Lock Range" of the speed. The sears unit I put in my Sport Fury a few years back could be adjusted to hold the speed to within 1 mph or let it vary up to 5 or more mph. Most places that install these types will usually set them for a fairly wide range, as this gives better fuel economy, but too wide can give the results you are getting. I'd say have the thing checked and/or adjusted. mikey at trsvax