Vacuum system


Asked by GuruQBXWB Nov 16, 2019 at 02:56 PM about the 1997 Ford F-150

Question type: Maintenance & Repair

I would like to know what does this connector do
and if it possible just to buy that connector

2 Answers


The blue and white disc is a vacuum check valve. With it in a vacuum hose of that size and close to the firewall my first guess is it's for the heating and air conditioning system. Are you only getting air out of the defroster vent? If so, that's definitely what it is. Hope that helps! Jim

1 people found this helpful.

Yes I put panel and it goes to defrost and the hose is black it connected from the firewall but the little conector look broke on the other side

1 people found this helpful.

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