A/c blows cold but comes out of the defroster instead of dash

It's the vent actuator, it moves the baffle that changes the direction of the air flow.
Here is a video of a broken vacuum hose that creates the same problem.

It could also be a failed actuator.

If the temp gauge is now more stable, the problem is in your heater system, not the engine cooling system.

If you have electronic automatic temperature control, press and hold off and floor buttons at the same time, with key in the on position, then release and press auto for 1 second.this will put system into self test. If numbers come up,152-52-32- 132-or some code, Google it..most likely the blend door actuator,some have found a way to do it without removing dash at s much lower cost.

usually evaporator is block I mean the outside. debris cause no air to flow or little.

common for this vehicle to have clogged heater core

sounds like you may have a vacume problem in the dash.

check the blender acuator,sound like it's not moving back and forth.under the dash.











TIM......

if clutch isnt kicking in, there only could be two things.....electrical issue(test the clutch connector for voltage, relays etc.), or low or no freon(have it vacuum tested if voltage is fine). Hopefully this helps

Had the same problem. believe it or not i changed the gas cap and got heat all around. something about pressure.

check the hoses connected to the vacuum advance ball, it has probably begun to decompose...