cruise control not working - 93 lumina 3.4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 03-15-2007, 10:04 PM   #1
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Default cruise control not working - 93 lumina 3.4

cruise does not work at all...

with my multimeter i have tested the switch and the wiring down at where it plugs into the servo.. works perfect...

figuring it would be the servo, i picked up a used one ($20) today..

still doesnt work...

what else do i need to test?
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Old 03-15-2007, 10:06 PM   #2
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Did u check vacuum lines?
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Old 03-15-2007, 10:07 PM   #3
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they are both there.. connected.. what could be wrong with them
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Old 03-15-2007, 10:17 PM   #4
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old, Rotten, Dry... Crack in them.... something...
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Old 03-15-2007, 10:21 PM   #5
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they arent new looking by all means.. but they will hold air.. no doubt..

there is a big and a small.. should i be able to feel a vacuum or pressure at idle with my finger?
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Old 03-15-2007, 10:31 PM   #6
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Does it have a brake cut-off switch? I assume it does and worth making sure its working right. This would sense brake fluid pressure and turn off cruise when you step on the brakes.
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Old 03-15-2007, 10:38 PM   #7
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Correct me if im wrong

but that car has the same module as GM uses right now ?


Just happen to have a pic handy...
Name:  cruisecontrolmodule.jpg
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could you not go to a JY and grab one for testing purposes
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Old 03-15-2007, 10:43 PM   #8
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ReallyAGXP-

GM did not use the Same one though out all the same years



heres what the 88-95 bonnies use


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Old 03-15-2007, 10:57 PM   #9
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This is the same problem I'm having with MINE. If you find out let me know exactly what you did. I have replaced the servo with a new one...replaced the module...replaced the switch, checked the fuse, and the vacuum lines hold air just fine.

Andrew, if you're talking about the two vacuum lines connected to the servo, the big one is the break cutoff switch and the little one is the actual vacuum line that goes to the vac canister. You will only hear a hiss from the small one.

About the only thing I've seen that could be wrong here is the wires in the steering column...those are the only wires that really could be disconnected or something.
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Old 03-15-2007, 11:16 PM   #10
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oOoOoOoOoOoOoOoOoOoOoO.... it worked temperamental!!!

i was out doing errands driving at 60mph.. then all of a sudden the gas kicks down and im going 70.. i never touched the switch... i hit the brake and it went off .. then i tested it again and it worked.. so i thought i was golden...

then driving home it wouldnt work
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