this system operates using the engine vacuum. it could be a vacuum leak .
Some ford truck hvac systems will default to the defrost setting if the is a problem with the electrical or vaccum parts of the system. I encountered a ford truck that had a mouse living under the hood and chewed through the vacuum hoses and would only blow on defrost.Do a good visual check including electrical,such as fuses etc...
The fan has two different ways to turn on in the Escort. Check the temperature gauge and its circuit as these control the fan when the engine heats up.
vacuum leak. look at the vac pump under the hood on the pass side and check the hoses for dry rot or cracks
you have to trick the ac computer by shuting it off then restarting it...
you have a vacuum leak. defrost is the default when a vacuum leak is present.
The AC does not blow on the main front vents. Only rear and defrost.
why dont bottom vent doors not open on 2001 gmcsonoma
The default for heaters is to go to defrost if there is a problem in the system. You will have to get under the dash to find the problem. Probably best to take it in as they can get tricky without diagrams depending on the system
You have vacuum line leaks somewhere.
depending on the year there should only be one
check your vacum line to door by the gas pedal for vacum
On my 1995 Ford Explorer when the defrost position is selected , and the temperature knob is set in the red area to get heated air to defrost the windshield , the A/C compressor will cycle on and off to help dehumidify the air, but the compressor ONLY cycles on and off in the DEFROST POSITION ( sorry if I'm misinterpretting your question )
The vacuum supply line from the engine is disconnected or broken. When the vacuum supply is cut off the system defaults to the defrost mode.
You will only have high speed fan
The one and only 1.9 liter engine.
Only the 1.9 L engine.
I believe that only 96-99 can be swapped 2000 and newer will not fit correctly.
Idk know but mine does it when i start off from a red light or stop sign and as soon as i let off the gas or it changes gears (automatic) it comes through the vents like normal.
only 1 exists, and i own it !
No there is not. The only located on the alternator is the voltage regulator.
You have a vacuum hose disconnected or broken. Check under the hood for a small vacuum hose out of place or broken.
either you have a vacume leak under hood or the diaphragm is blown on vent selector
on my 1992 road touring itdid the same thing and it was the computer but it only cost 102.00 from gm
vacuum leak the vacuum reservoir is below the left head light, check the hoses
You should be able to, the only differerence is a zx2 is a dual cam engine, both are 2.0, so the basics are there the same block, which means same bolt pattern.