Quick A/C Question

[jnmcinnis]

A/C blows out front vents at idle and up to 50 mph but defrost at speeds over 50

My A/C blows out of defroster on acceleration and after truck get past 50 I checked the vacum lines an the vacum accumalator ever thing is fine no leaks I was wondering if the EGR Vacuum Solenoid could cause the problem because the line runs from the vacum accumalator for the a/c to it with a few other vacum lines also. Help would be appreciated.

 

[AllanD]

Your accumulator is probably good, the check valve between it and the engine however sounds like it's dead.

AD