Hi,

The hot air keep coming out under the dash when the A/C and fan is "off", when I turn on the A/C(in any other position which is not off) then it stop! I can't drive without turn on the A/C because the hot air will keep coming under the dash, it will be hot inside, why ?

When I kick down on the highway (about 2nd or 3th speed on the auto transmission, over 3000 rpm), the A/C start to blow the windshield, when the action over, it return to normal , so strange??

It is killing me, pls help

 

there are little vac operated air doors that control the flow of the air in the heating/ac vents...

it sounds like yours are acting funny... i would check the vac line going from the engine to the air doors... if it has a leak, enough vac might not be getting to the system, and when you floor it they all just move to the default position...

just a thought..


another idea about the hot air though is that one of the plugs in the firewall came out.. you could take off the cover that is above the pedals and then see the firewall... look for a plug that isnt in the hole all the way... jsut a thought.