Question about 1998 Ford Escort
You have a vacuum leak somewhere. When you accelerate your engine vacuum drops. with a leak in the lines going to the heater control head you are not able to hold the spring loaded actuator door in the position you have it set for. The rest position of it is defrost. check for cracks or splits in the rubber vacuum hose that comes from the engine thru the firewall to the heater control head.
Posted on Apr 21, 2013
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Posted on Jan 02, 2017
LOOK AT THE WHITE PLASTIC HOSE GOING TO THE RECIRC VACUUM ACTUATOR UNDER HOOD. THIS IS ON TOP OF A/C BOX BY RIGHT SIDE OF FIRE WALL YOU WILL FIND THIS HOSE IS STARTING TO COME APART REPAIR HOSE AND PROBLEM FIXED.
Posted on Sep 13, 2008
Check the white vacuum hose going to your recirculation door outside under the hood. It is located on the passenger side firewall . The hose becomed brittle and falls apart. I get small vacuum hose and cut into the wiring harness to locate a good section of hose.Put hose to vacuum motor. Good luck.
Posted on Aug 10, 2009
yes you have a vaccum leak some where. there is a vaccum cannister attached to the battery tray so it could have corroded something or you have a one way valve that clould be bad on the black vaccum hose coming out of the fire wall goin to the engine
Posted on May 10, 2011
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