When Idleing the air blows out of the front vents. When accelerating the air comes out of the defrost. I have been told to check the check valves.
2006-08-16 15:27:44 · 2 answers · asked by BoomBoom 1 in Cars & Transportation ➔ Maintenance & Repairs
what is happening is its loosing vacuum to the dash controls, this is why it switches but directing you to a check valve, if it has one isnt easy. smartest place to start is under the hood and look for a vacuum line coming in the vehicle on the passenger side
2006-08-16 15:33:44 · answer #1 · answered by Christian 7 · 0⤊ 0⤋
follow the black rubber hose from behind the brake fluid reservoir back to the intake manifold vacuum tree there you will find a couple hoses check valves push into the vacuum hoses old plastic check valves are very brittle just locate it drive over to Ford or Good parts store buy a new one then change it out. Also the rubber hose might need to be replaced, and because it is split and your vent control problem is not a check valve problem at all.
2006-08-16 15:42:50 · answer #2 · answered by John Paul 7 · 0⤊ 0⤋