The air blows out great but the air does not get hot or cold. The heater when turned on makes all the right sounds like the switching over from normal to heat but it never gets hot. same with the a/c it never gets any colder.
2006-11-02 04:15:47 · 6 answers · asked by mongo3434 2 in Cars & Transportation ➔ Maintenance & Repairs
All the thermostat does is let your car know when to cycle the anti-freeze, not the AC.
Also, the blower motor (fan) is separate from the A/C, so that won't tell you anything either (except that the fan works fine!).
Turn on the A/C full blast and open the hood. Do you hear the A/C compressor cycling?
Probably not, and that means either your compressor is frozen, or you're out of freon.
Test the compressor by turning off the truck, then trying to move the front plate of the A/C compressor (it's a component attached to a fan belt, like the power steering pump, only it has a plate attached to the front). Try to turn the plate part. If it turns, you're good to go, you need freon.
You may have a small leak, and that means you need to have the A/C serviced.
They pull a vacuum on the system, find the leak and repair it, then refresh the freon.
Hope this helps!
2006-11-02 04:28:31 · answer #1 · answered by korikill 4 · 0⤊ 0⤋
it sounds like you have a blend door issue. Your system is made to fail in the heat position so you always have defrost - safety issue.
Assuming the coolant is full, in the radiator not just overflow bottle, and the heater core lines are both hot at the firewall you should have heat. The blend door inside the hvac box controls the temp of air through the vents. You can locate the vac controled actuators on the sides of the box under the dash. Hook up a hand operated vac pump to each acuator - and make sure each door is moving. You can grab the linkage and carefully move it if you dont have a vac pump. You should also check to see if the line has vacumme at the actuator. You could have a vac prob.
The blend doors can and do break. It doesn't sound like you have an ac prob, but you dont know until you get heat from the vents and the doors are switching properly.
2006-11-02 06:34:31 · answer #2 · answered by joseph m 1 · 1⤊ 0⤋
Hot Cocoa Cold Pizza
2016-05-23 17:24:36 · answer #3 · answered by Michelle 4 · 0⤊ 0⤋
we will start with basics, does the ac clutch engage when you turn on your ac, are both of your heater hoses hot right before
they enter the firewall to the heater core? did your truck have a vacuume canister on the firewall that was removed? Rember
when you accerolate and open the butter-flies you lose all vacuume and that will cause havock with all vacuume controled
doors and valves under your dash in your plenam chamber and all valves under your hood
2006-11-02 04:34:30 · answer #4 · answered by stevet 4 · 0⤊ 0⤋
under the dash drivers side is the linkage for the temp check to see if it is connected.
2006-11-02 04:39:28 · answer #5 · answered by hawop 3 · 0⤊ 0⤋
Could be the thermostat.
2006-11-02 04:23:49 · answer #6 · answered by Anonymous · 0⤊ 0⤋