1994 Cadillac Deville vacumm solenoid and vent solenoid.

Tiny
ROBERT3686
  • MEMBER
  • 1994 CADILLAC DEVILLE
  • 4.9L
  • V8
  • FWD
  • AUTOMATIC
  • 111,000 MILES
Recently my cadillac has started stalling when stopped and sometimes while driving, it also revs and the gas pedal pushes in a little when on brake and stopped like in a drive through.I pulled the codes and they came back as problems with a vacumm solenoid and vent solenoid, what are these parts and to your expertise does that sound like the correct fix?
Thursday, July 31st, 2014 AT 5:00 PM

5 Replies

Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
Your car could have a vacuum leak which could cause these problems. Check the many vacuum lines under the hood.

As far as the code go, please post the code numbers here so that I can better research them and give you a more positive answer.
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Thursday, July 31st, 2014 AT 6:14 PM
Tiny
ROBERT3686
  • MEMBER
  • 5 POSTS
Ok, thank you, the codes that came up were, PO61, PO62, and PO65, thank you so much for your help, its greatly appreciated.
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Thursday, July 31st, 2014 AT 9:33 PM
Tiny
FREEMBA
  • MECHANIC
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All of these codes indicate problems with your cruise control.

P061 = Cruise Control Vent Solenoid Problem
P062 = Cruise Control Vacuum Solenoid Problem
P065 = Cruise Control Servo Position Sensor Failure

Disconnect your cruise control (or remove its fuse). If your problems go away them you know that it is because of a faulty cruise control unit or that the unit is shorted to ground. There are many checks/test to determine the exact cause so once we determine that it is indeed the cruise control which is at fault, I can give more info to track down the problem.
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Saturday, August 2nd, 2014 AT 7:40 PM
Tiny
ROBERT3686
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  • 5 POSTS
I've disconnected the cruise from under the hood, it is still stalling and acting like it doesn't wanna accelerate with quick jerks when I push on the gas, and if I accelerate like pulling out of a gas station it will cut off and I'll have to pull over and put in park and it starts right back up
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Thursday, August 7th, 2014 AT 4:07 PM
Tiny
FREEMBA
  • MECHANIC
  • 1,152 POSTS
Did you check for vacuum leaks? A good place to start is with the vacuum lines going to the cruise control unit.
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Thursday, August 7th, 2014 AT 7:31 PM

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