Question about Toyota Cars & Trucks
Air flow selector switch not working
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: air flow selector
Your mode door is controlled by vacuum check the vacuum hose on the left side of the intake manifold. these some times fall off leaving your mode door with no vacuum and the default position of the mod door is defrost.
Posted on Jun 18, 2008
THe blend door seems to be stuck. When you change settings from defrost to floor air or, vent, the blend door opens and closes directing the air to the place you want it to go to. I have had some success spraying a lubricating oil such as WD40 under the dash on the blend door. You need to get under the dash with a flashlight to locate it. It looks like a flap. Spray it with a couple of shots of the WD40. Go easy on the spraying as you may be inhaling the fumes. Keep the doors and windows open to minimize the fumes. Wait about 1/2 hour and try the A/C functions. (defrost, floor, vent air)
Posted on Mar 09, 2009
Hi, sounds like a vacuum problem. When you select from floor to vent to defrost, the system uses vacuum from the engine to change over. If you look under the hood, near the firewall, towards the center, there should be small rubber vacuum lines. Check these lines for leaks with the engine on by spraying soapy water on the lines. If you see bubbles forming on any of the vacuum lines, this is where the leak is. Also check the vacuum lines going to the climate control unit inside the vehicle.
Posted on Jul 27, 2009
The AC hose that is suppose to drain water outside the car beneath is gone bad wherein water that is suppose to go outside the car is getting drained in the car and the front passenger side to be precise.
Trace the hose and reset it to flow out under the car.
Posted on Aug 11, 2009
egr position sensor. check items before you replace them, it gets expensive just guessing.
Posted on Oct 13, 2009
Testimonial: "thank you for the advise. and yes, it is getting expensive. "
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