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.
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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