Diagram of the vacuum hose for the AC?

HANDNSUMBOI21

MEMBER
1998 BUICK REGAL
127,000 MILES

Can I get a colored diagram of the vacuum hose for the ac? And a picture of the door for the vents inside the car so I can see if they are open? Ac is only blowing on the floor and the defrost but on both the ac is very cold but I need the front vents to work so I can feel the air hit me. THANKS

Monday, April 2nd, 2012 AT 12:34 AM

6 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

No color available but most controls are electric.

Roy

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Monday, April 2nd, 2012 AT 1:02 AM

HANDNSUMBOI21

MEMBER
14 POSTS

Thanks but one last question on the diagram the number 3 hose, if I change that that goes for the ac that's going through the vents in the car right?

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Monday, April 2nd, 2012 AT 1:22 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

Not through the vents. It comes through the firewall to the block.

Roy

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Monday, April 2nd, 2012 AT 1:24 AM

HANDNSUMBOI21

MEMBER
14 POSTS

Okay so Is that the hose I should be changing if my ac is only blowing through the defrost and floor vents? I have an understanding I just don't know which hose to change out, cause I know there's a leak. Thanks for the help

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Monday, April 2nd, 2012 AT 1:32 AM

HANDNSUMBOI21

MEMBER
14 POSTS

So basically for the ac to ONLY be blowing on the floor and defrost vents would mean that, that engine vacuum hose has a leak or so?

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Monday, April 2nd, 2012 AT 1:47 AM

ASEMASTER6371

MECHANIC
52,797 POSTS

No, there are electric mode motors controlled by the car hvac system as well. You can try the hose and hopefully it works but if it does not, then there are other issues.

Roy

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Monday, April 2nd, 2012 AT 1:51 AM