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The front air suspension on both front wheels deflate intermittently?

Tiny
EUGENE JANOWSKI
  • MEMBER
  • 1989 LINCOLN MARK VII
  • 106,000 MILES
The front air suspension on both front wheels deflate intermittently. At times the bags when inflated will stay up for over 24hrs. If I take the vehicle for a ride and stop to do an errand sometimes they deflate other times they stay inflated. From what I can determine the air bags themselves are not leaking. The rear air bags always stay inflated. If you can solve my problem I will make a contribution. Stay inflated
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Monday, October 21st, 2013 AT 2:08 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

It sounds like there is a leak in the system. It is possibly a valve that is leaking.
It could be that the purge valve for the system is weak and leaks out over time. As you mentioned this is intermittent, it is possible that at a certain temperature you have more leaks than the other. Also, the duration of how long the vehicle is parked can also be a contributing factor.

To figure out what is leaking you will have to inspect the air ride components.

I have attached a diagram showing the air ride system on the Mark VII.

Please let me know if you have any questions.
Thank you.
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Monday, January 10th, 2022 AT 1:40 PM

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