when i run the a/c on my 98 mc z-34 it wants to blow the air threw the defrost and to the floor. sometimes when its idling it blow alittle bit out of the dash vents, it dosnt matter what setting i put it on. does anyone have any ideas on what might be wrong? thank you for any info.

 

Hello Redneck,

Your problem most likely is due to a vac problem somewhere in the A/C system. Your A/C vent control system uses vacuum to operate the vent doors. I would start by pulling your dash apart to check those vac lines for leaks. Secondarily, as you have your a/c system apart check each vent door's mobility. It may simply be that something is just stuck. Post back and let us know what you find...

TVW

 

hopefully i can take a look at it this weekend , ill let know what i find wrong with it. thank you for the info.

 

i found a vacum line by the battery that had been broke off, i couldnt find were it lead to so i used electricle tape to plug it. now my a/c works like it should.

 

Cool.... I am glad you were able to trace down your problem!!! Vacuum lines become brittle and require replacement after a period of time which should be a high focus item after 4-6 years.


TVW