Vents feel weak

CODYK

MEMBER
2000 MERCURY MARQUIS
148,000 MILES

With max A/C on and fan in high, air does not seem to blow out of the vents very much. Even with the passenger's vents turned off. Any thoughts?

Wednesday, July 25th, 2018 AT 3:42 PM

3 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Good evening.

It could be the blower motor itself not pushing the air.

It could also be the actuator not opening the door all the way.

The last possibility is the vents are leaking air somewhere.

Roy

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Wednesday, July 25th, 2018 AT 4:49 PM

CODYK

MEMBER
2 POSTS

Had not thought about the vents possibly leaking. Where could the vents be leaking? Cannot think of what would cause them to leak if they are that is. Could the fan motor get weak and not rotate as fast? Wonder if one of the rubber lines or o-rings in the control unit are worn and leaking. It seems to be getting worse as the days go on. I have to turn the other three vents off to get max air out of the one.

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Wednesday, July 25th, 2018 AT 5:10 PM

ASEMASTER6371

MECHANIC
52,797 POSTS

The wheel on the blower could be the issue not spinning fast enough to push air.

The vents have junctions in the dash in the case. The leak could be anywhere in the dash.

Roy

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Wednesday, July 25th, 2018 AT 5:14 PM