Flushed system verified control valve working bleed system correctly I am not getting any servo movements air coming from upper vents only I’m now at the amp can I jump a couple of wires to force it in to heat mode thanks jon

 

Have you checked for vacuum at the climate control vacuum manifold?

 

is the manifold just behind the amp on left side?

 

There are two wires at the servo (not amp) that you can apply voltage and ground to rotate the servo motor and thus change into heat mode. I'm away from my notes at the moment but I think it's the red and purple wires. An archive search might have something on that. Otherwise I'll look for the info.

Cheers
DD

 

Thanks servo motor bad will not rotate so I loosen rods both slides up then disconnected vacuum from valve under hood blasting heat sending servo to jag-air for rebuild thanks jon