C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Cruise control not working

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Old Jul 17, 2009 | 02:56 PM
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Default Cruise control not working

My cruise control is not working.Any ideas of where to start looking for diagnosis?Any parts that usually go bad first?Fuse is not blown.
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Old Jul 17, 2009 | 03:23 PM
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I just fixed mine by adjusting the clutch safety switch (the one that's depressed when the clutch pedal is "up"). There's also one on the brake pedal (or only one if you're in an Auto).
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Old Jul 17, 2009 | 03:44 PM
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Check the vacuum lines and check valve around the distributor and to the cruise actuator assembly.
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Old Jul 17, 2009 | 03:51 PM
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Thanks guys I'll check those areas.When I turn on the switch I don't getany lights on the dash.
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Old Jul 17, 2009 | 04:31 PM
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I checked vacuum lines all seem to be connected.The small hose goes to a check valve .This might not be working .It goes to some smaller plastic lines.I don't think any of the lines are leaking because the idle is o.k. right around 700 rpm.I couldn't see where the larger hose connected to behind the distributor.I didn't get a chance to check the switch on the break and clutch pedal you've got to be a contortionist to get to where they are.

Last edited by steven mack; Jul 17, 2009 at 04:36 PM. Reason: add info
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Old Jul 17, 2009 | 06:05 PM
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http://members.shaw.ca/dankai/Cruise%20Control%209C.pdf

http://members.shaw.ca/dankai/Cruise%20Control.pdf
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Old Jul 17, 2009 | 08:56 PM
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Thanks Agent 86
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