neat and a/c control

[riviera]

My heat and a/c contro won't switch from heat to vent to a/ it only blow on defrost and won't bring the a/c on. Not sure were to start to repair it

 

[WH1_T-Type]

So the air is only coming out of the defrost vents but is still changing temperature? Or it's not changing temp either?

Posted from the TurboBuick.Com mobile app

 

[riviera]

Yes it wll go from hot to co by moving the lower lever left to right but it only blow out the vent that defrost the widnsheid

 

[Silver Fox]

http://www.turbobuick.com/forums/threads/a-c-blowing-out-of-heater-vents-near-floor.284990/

 

[riviera]

Silver fox thaks for sending me that post just had a question my fuel pressur regulator was leaking gas from the vacum port on the regulator I just replaced it but do u think the gas might have caused a problem in my vacum system

 

[Silver Fox]

I

Silver fox thaks for sending me that post just had a question my fuel pressur regulator was leaking gas from the vacum port on the regulator I just replaced it but do u think the gas might have caused a problem in my vacum system

Check your vacuum lines and check valve.

 

[riviera]

were is the check valve located at

 

[Silver Fox]

were is the check valve located at

Check valve is in front of the EGR valve in the vacuum hose. Black on one side, white on the other.