Air flow only works downstream. Why won't come out the dash?

Asked by Aug 03, 2012 at 01:41 PM about the 2002 Dodge Dakota 2 Dr Sport Extended Cab SB

Question type: Maintenance & Repair

do I need a new air flow sensor? A friend told me there are upstream and downstream sensors. Is this
info correct/

2 Answers


There are upstream and downstream O2 sensors for your exhuast. Are you referring to where the air blows for your AC/heat?

1 of 1 people found this helpful.

If your talking about only having air flow say at your feet, but it wont come out the dash head vents, or the defroster vents, theres no sensors. your mode doors arent moving, and its more than likely due to a vacuum leak.

1 of 1 people found this helpful.

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