A/C - Heater Air Flow
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Junior User
Joined: Oct 2004
Posts: 80
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From: NW Illinois on 40 Acres
A/C - Heater Air Flow
My 99 SD PS is blowing all the air flow thru the defrost vents no matter what I have the controls set on.
Checked Fusses, all appear to be OK.
Pulled glove box to view actuator located behind it. Can change air flow by manually moving control arm but that is it.
Pulled dash cover off to check A/C Heater controls.
Pulled vacuum lines attached to back side to air flow control ****.
With engine running I CAN NOT "FEEL" any vacuum on any of the lines to the control ****.
Where do I check next as none of my manuals cover anything on the vacuum system for this truck. OR Have I over looked something else that maybe causing the problem.
Thanks.
Ron
Checked Fusses, all appear to be OK.
Pulled glove box to view actuator located behind it. Can change air flow by manually moving control arm but that is it.
Pulled dash cover off to check A/C Heater controls.
Pulled vacuum lines attached to back side to air flow control ****.
With engine running I CAN NOT "FEEL" any vacuum on any of the lines to the control ****.
Where do I check next as none of my manuals cover anything on the vacuum system for this truck. OR Have I over looked something else that maybe causing the problem.
Thanks.
Ron
