2003 astro cargo van ventilation system
I have a problem with my 2003 astro van that sounds similar to a former post in that I only get air flow thru my defroster vents when either the a/c or heat is turned on and nothing thru the dash vents. In addition to this there is a rattling/rolling sound coming from the vent when the vehicle moves forward or reverse. Is there something broken inside the ductwork besides the possibility of a vacuum line problem?:confused:
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Sound like something might have been dropped into the duct work. A nut or two could be making the rolling noise and prevent movement of the air flow doors. If you can find a place to rent one, a borescope would let you look around inside without taking things apart.
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Originally Posted by glener
(Post 181856)
I have a problem with my 2003 astro van that sounds similar to a former post in that I only get air flow thru my defroster vents when either the a/c or heat is turned on and nothing thru the dash vents. In addition to this there is a rattling/rolling sound coming from the vent when the vehicle moves forward or reverse. Is there something broken inside the ductwork besides the possibility of a vacuum line problem?:confused:
Please let me know if you figure it out. patrick |
I have the same problem found a broken vacuum line up front right side and replaced it, but still don't get air through the dash vents.
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Start from scratch and replace all vacuum lines and your problem will be solved.
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There's also a chance of a bad vacuum line in the area of the intake manifold. It's common on Astro's for this to get cooked by engine heat.
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