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1999 Cadillac Deville air ride

Tiny
BRUTIS5
  • MEMBER
  • 1999 CADILLAC DEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 74,210 MILES
Hi, when driving with alot of weight in car (5 pass + lugage) car loses air in suspension and air pump won't go on to refill air struts. So I bring car to stop & restart car, wait a few seconds and air ride pump gos on car levels and start driving. 10 minutes later same thing. I figure theres a leak when lots of weight but should the air pump go on to compensate. Also air does not leak out when not alot of weight or sitting over night.
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Sunday, December 16th, 2007 AT 10:38 AM

3 Replies

Tiny
PINACTION801
  • MEMBER
  • 2 POSTS
I had the same problem in my 98 Deville - My son-in-law changed the 2 small O-Rings at the pump by the rear axle - Never had a problem again. Hope this helps.
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Monday, December 17th, 2007 AT 6:08 PM
Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Sounds like a leak with a load, you can add some ac die into the air line system, and ck it with a black lite, to find the prob
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Thursday, December 20th, 2007 AT 5:34 PM
Tiny
BRUTIS5
  • MEMBER
  • 2 POSTS
Thanx everybody. After the holidays I am going to fix the caddy. I will post the results (good or bad). Talk to you soon in the new year.
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Wednesday, December 26th, 2007 AT 10:35 PM

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