98 Blazer heater air flow


Old 10-29-04, 05:59 PM
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98 Blazer heater air flow

How do I get to the flapper controls that regulate air flow--I get little or no air flow on the floor and most air into defrost vents---I replacet total control package(temp air speed & directional button..I now have almost all plastic off front of dash and radio out and still cant seem to see how to get to control flapper post which seems to be wobbling like it is broke.
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Old 10-30-04, 04:14 AM
Join Date: Apr 2002
Location: Pittsburgh,Pa
Posts: 2,417
Look under the hood on the drivers side for a black plastic ball about the size of a softball.Make sure the vacuum hose is still on there before going any further.
Old 11-05-04, 06:40 PM
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cannot get heat on floor

other locations are switched by control--afraid something is broken--white arm seeming to come from a flapper in air stream sobbles when turned by vacume drive levers local mech. seems to think that it is broken some how??

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