Cruise control

Tiny
SEAN03
  • 1992 CADILLAC DEVILLE
  • 135,000 MILES

I have been working on my 1992 cadillac deville cruise control. I have changed out the turn signal lever that has the cruise control attached to it. I have also changed out the servo. It still wont work. By what I mean it wont work. Is that the light at the bottom that says cruise wont come on. I try to activate the cruise control and it wont come on. Any suggestions I have a new pigtail for the servo. I dont know if that plug is bad or not. I will tell you the car has caught on fire before. Any suggestions. I really dont want to cut the pigtail off that connects into the cruise control servo if I dont have to. Me and cadieman have tried looking at the codes their was none. We checked the fuse. It is good. We tried removing the fuse and checking the volts. It had 12 volts. We checked the lever it had 12 volts. We checked the servo for vacuum the smaller hose pulled down to 15 inches the larger hose had no vacuum. The first 2 pictures show the smaller hose it has a vacuum here. The next 3 pictures show the larger hose. This has no vacuum at all. The next 3 show the larger hose connects into the hose that runs behind the brake booster. When I take the large hose of in picture 3 and put my finger over one end and pull a vacuum it keeps the vacuum. In the last three pictures The large hose that runs behind the booster when I blow air in it it goes straight through it. Is their a way for me to check the voltage on the pig tail that goes into the servo. Thanks.

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Friday, June 22nd, 2012 AT 6:31 PM

20 Replies

Tiny
CADIEMAN
  • MEMBER

Have u checked the voltage at the fuse yet?

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Friday, June 22nd, 2012 AT 11:33 PM
Tiny
SEAN03
  • MEMBER

Yeah it was fine put the meter had power.

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Friday, June 22nd, 2012 AT 11:47 PM
Tiny
CADIEMAN
  • MEMBER

Check for voltage at the base of the steering column to 3 wire connecter that goes to the lever.

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Saturday, June 23rd, 2012 AT 12:10 AM
Tiny
SEAN03
  • MEMBER

Is this what I am suppose to be checking. If so how do I test it. Thanks.

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Saturday, June 23rd, 2012 AT 4:36 PM
Tiny
CADIEMAN
  • MEMBER

Hook all the wiring up. Leave the lever on the floor. Turn on the key.

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Saturday, June 23rd, 2012 AT 7:01 PM
Tiny
CADIEMAN
  • MEMBER

Then check for power at that connecter by the lever.

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Saturday, June 23rd, 2012 AT 7:04 PM
Tiny
SEAN03
  • MEMBER

Hey we did this before The red and blue wire that plugs in to the connector had power. The green and yellow wire that plugs in the connector had no power. I guess the green and yellow are grounds. Thanks.

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Saturday, June 23rd, 2012 AT 7:24 PM
Tiny
CADIEMAN
  • MEMBER

If no codes are set. It has to be vacuum or a misalined switch. Ck. That there is vacuum to the set selonid and the large hose goes to the brake pedal test by blowing on the hose. If u can blow through it u need to adjust the brake sw.

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Saturday, June 23rd, 2012 AT 9:43 PM
Tiny
SEAN03
  • MEMBER

I can blow throug it. How do I adjust the brake switch.

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Saturday, June 23rd, 2012 AT 10:26 PM
Tiny
SEAN03
  • MEMBER

Here are some pictures that are on the brake. The top one has a hose on it. I would say the top one is the cruise control switch.

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Sunday, June 24th, 2012 AT 1:13 AM
Tiny
CADIEMAN
  • MEMBER

Kinda new that was it. Easy fix it sucks you wasted all your money if this works. Above the brake light switch is the vacuum switch by the flasher if u look at the switch its not fully flush with the brake pedal. You just need to push it in until it is flush with the brake pedal. Blow into the hose again if good the cruise should engage then. Gl

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Sunday, June 24th, 2012 AT 2:33 AM
Tiny
CADIEMAN
  • MEMBER

Let me no.

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Sunday, June 24th, 2012 AT 2:34 AM
Tiny
SEAN03
  • MEMBER

Here are some pictures of it. I havent done anything yet. I tried pushing it in and it didnt do anything. What do I need to do now.

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Sunday, June 24th, 2012 AT 4:15 PM
Tiny
SEAN03
  • MEMBER

I even pulled the pedal towards me and it didnt do anything.

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Sunday, June 24th, 2012 AT 4:16 PM
Tiny
CADIEMAN
  • MEMBER

Then u need to replace the vacuum switch.

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Sunday, June 24th, 2012 AT 10:54 PM
Tiny
SEAN03
  • MEMBER

Ok that's what I will do. How do I install it.

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Sunday, June 24th, 2012 AT 11:23 PM
Tiny
CADIEMAN
  • MEMBER

It slides in and out. Thats y I asked u to check the switch adjustment.U push the switch all the way to the brake pedal.

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Sunday, June 24th, 2012 AT 11:42 PM
Tiny
SEAN03
  • MEMBER

Ok I pushed it in as far as I could. It still didnt work. I will replace that switch.

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Monday, June 25th, 2012 AT 12:06 AM
Tiny
CADIEMAN
  • MEMBER

U cant blow through the hose right?

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Monday, June 25th, 2012 AT 8:48 PM
Tiny
SEAN03
  • MEMBER

Yeah I can blow through the hose. The engine calcium work on th smaller line going into the servo. The bigger line coming out of the servo and going into the car has no vacuum. Go all the way to the top to my first question look at picture 5 that has no vacuum at all going into the car. Also go to the first question and look at the first question picture. Look at the first picture that has the vacuum. Thanks.

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Monday, June 25th, 2012 AT 8:56 PM

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