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Cruise-Control Gremlins

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Old Sep 25, 2004 | 04:52 PM
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Sully C5's Avatar
Sully C5
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From: Greer SC
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Default Cruise-Control Gremlins

Last week, when I tried to set the cruise control, the DIC would indicate that the speed was set at whatever speed I was going, but the car would decelerate. When it drop ~5 mph, DIC would say Disengaged. For about 10 minutes, I couldn't get cruise-control to work, then it was OK. Today, on the same section of that road, it happened all over again. I am stumped!
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Old Sep 25, 2004 | 04:57 PM
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From: HOW FAST WAS I GOING OFFICER? Los Angeles Hating GM Dealership Service Dept.'s Since Sept. 2004
St. Jude Donor '04-'05-'06-'07
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Originally Posted by Sully C5
Last week, when I tried to set the cruise control, the DIC would indicate that the speed was set at whatever speed I was going, but the car would decelerate. When it drop ~5 mph, DIC would say Disengaged. For about 10 minutes, I couldn't get cruise-control to work, then it was OK. Today, on the same section of that road, it happened all over again. I am stumped!
I've learned duplicating the setting and re-enacting every step usually helps reveal the flaw. You did something different in the 10 minutes to engae the CC. BTW, I know you have to go over a certain speed to engage CC, so that <5 mph disengage wasn't abnormal. Maybe you held the "set" button longer after you thought there was a problem? I've experienced the same thing ... just wasn't holding the button long enough. Just my .02 ... and besides, I'm giving you a reason to go for a drive! Just use a different road ... sounds like someones messin' around with a Cruise Control Jammer on that other road you were on.

Last edited by MyVetteDream; Sep 25, 2004 at 06:58 PM.
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Old Sep 25, 2004 | 11:45 PM
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From: Anthony TX
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Check the vacuum hoses that connect the CC unit to the manifold. If they are cracked or loose the Cruise will not work properly.

BC
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