Re: XJ Air Box Question...
 

Vacuum leak. The "flap" is vacuum controlled like Mike said.
KH

"Jamie" <jlarnerdNOSPAM@us.ibm.com> wrote in message
news:3F428603.625E731D@us.ibm.com...
> '99 XJ
>
> Turned my defrost on high only to hear a loud "whistling sound" and no
> air coming out the defroster (the side vents still work). All other
> settings work fine (vent, heat, AC, etc), just the defrost setting is
> acting up.
>
> Something inside the air box seems to be preventing the flapper from
> fully moving into the correct position for defrost.
>
> Suggestions????
>