Question about 1998 Ford Ranger
Air does not come thru the vent in the dash either hot or cold i have change the blend door actuator that did not fix the problem all the air or heat comes out of the defrost
That gentleman is rigt about u t being a vacuum ported ac control head assembly. What that means is that your ac controls has a ain vacuum line tat go to ac control head. Always check for vacuum, if there is vacuum try cleaning the hose attachment supplied to the back of the control head, sometimes the ported vacuum tube assemply gets pl liu gged up. Then check actual transfer of vacuum to vacuum actuators located on the driver side just above the gas pedal area on the hvac system. Yu can also test the vacuum actuators by applying vacuum to see if they pull the door open and hold vacuum.
Posted on Jun 10, 2015
If all your air or heat comes out of your defrost than the problem is more than likely your switch or a vacuum hose to the switch. Car's default to defrost when there is a problem. I can't recall off the top of my head but I do believe that vacuum controls the blend doors on the 98 Ranger. I can't quite remember but I think the white one is the main vacuum. Either way. pull out your heater switches, disconnect the rubbery plug with all the vacuum hoses, start the engine....1 of those should have constant vacuum, if not...chase it.....there will be 1 that goes through the firewall to the engine, the rest go to the blend doors.
Posted on Mar 29, 2015
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Posted on Jan 02, 2017
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