Question about Cars & Trucks
That would be on passenger side. If your heat adjustment knob is a mechanical connection, it is likely the outer jacket slipped out of it holder. If it is vacuum actuated, there will be a small vacuum servo on the plenum that controls that position. The hose may be pinched.
You may also have air trapped in the heater core. When the engine is warm- check the heater hoses to see if they are both evenly warm- if not purge the air out of the system. Difficult to remove air bubbles can be removed by installing a flushing tee in the upper hose at a point where you can raise the hose above the highest point of the engine. and when warm, carefully cracking it open to let air out of system until only coolant escapes.
Posted on Feb 15, 2012
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Posted on Jan 02, 2017
The temperature blend door actuator is located on the right side of the transmission hump under the evap. case. The floor ducts cover it.
Posted on Jun 22, 2009
If the thermostat and heater control valve (not the door actuator) are good. Ypu woulwant to check that the heater core is not clogged. The heater control valve is a valve in line with one of the heater hoses which allows flow or no flow to the heater core. You need to check that when temperture is on hot the hose is hot on both sides of the valve. If the valve doesn't work you will not get ant heat.
Posted on Oct 10, 2009
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