02 BUICK LESABRE VACUUM LEAK

  • Tiny
  • bcmullen95
  • 2002 Buick Lesabre
  • 130,256 miles

I am looking for a vaccum diagram for the 02 buick lesabre. It is missing a hose, one end of the hose connects to the check valve, which is connected to the intake manifold. I need to know where the other end connects. I know one hose from the check valve attactches to the brake booster, but where does the other one attach?

Wednesday, February 23rd, 2011 AT 6:05 PM

7 Answers

  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

This help

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Wednesday, February 23rd, 2011 AT 7:04 PM
  • Tiny
  • bcmullen95
  • Member

No it did not help. I have provided a picture. I hope this might be more helpful.

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Thursday, February 24th, 2011 AT 12:30 AM
  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

Little close where does big hose go? Is vacuum on open port? Is there aloose hose? Was work being done and hose left off? What location on engine?

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Thursday, February 24th, 2011 AT 2:35 PM
  • Tiny
  • bcmullen95
  • Member

The large hose goes to the brake booster. The family of the car moved from a different state and had work done there. I found the air leak that was triggering the p0171 code and part of a degraded hose still attach around the part. I have not been able to locat where that hose may have gone, or found a hose that was open somewhere else. The first picture is the part disconnected from the intake manifold, the second is a side picture.

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Thursday, February 24th, 2011 AT 7:49 PM
  • Tiny
  • Docfixit
  • Expert
  • 18,991 posts

O.K. Port is not used so no hose to find. Get a cap for it that was what was left without top. Port used to attach test EQ

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Thursday, February 24th, 2011 AT 8:29 PM
  • Tiny
  • bcmullen95
  • Member

Thanks I appreciate your help. I did cap it off.

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Thursday, February 24th, 2011 AT 8:53 PM
  • Tiny
  • rivermikerat
  • Expert
  • 6,174 posts

Look for an evaporator canister. That needs a vacuum supply.

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Monday, March 21st, 2011 AT 6:00 AM

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