On dash all switches work ac and heat only blows on floor when turn of knob vents on top or windshield vent don't work only bottom vent works no matter what position set on only bottom checked fuses good power all replaced part-- only floor works new switch in dash still -no vents- no vents in windshield work- nothing but floor ac and when switched heat works wont do nothing only floor
Possible bad blend door actuator .some gm cars can be relearned to the new climate control head
SOURCE: there is no air blowing out the vents on the dash board when i turn the ac on
you have a bad control unit, the thing you use to switch from one thing to the other, it needs to be replaced.
SOURCE: 98 Olds LLC - AC works but fan air does not blow
If you have a late model GM car
and the system is controlled electronically the blend door actuator becomes weak. When this situation occurs it will not move the air direction door inside of the heater/air conditioner plenum. in your case not to the vents Replace the actuator with new and recheck the system. i hope this helps
SOURCE: AC Mode Switch on 1998 Intrigue
switch is bad or a bad vaccume to the vent doors that control the air flow
SOURCE: Where is the vent / AC blend actuator fuse / relay
It will not be a fuse,the actuator motor is bad,the fuse is tied in with the blower and such,if the blower is working ,then the fuse is good.
Remove the floor air outlet duct extension (1) from the floor duct (2)
Blend door actuator and related components
Remove the blend door actuator mounting screws from the HVAC moduleBlend door actuator and related components
Blend door actuator-C/K Series1,173 views
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