Question about 2000 Chevrolet Venture

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2000 Chevy Venture - Front vents will not open to blow warm air

Not a blower issue, speed steps up and down ok. Engine also heats up normally without issues, not thermostat (thank God, what a pain!!).

Examination of switch revealed that the system is producing vacuum - when vacuum lines connector was taken off back of control panel vent switch the pressure was released in long hiss of air rushing in.

I am not sure if this is caused by extreme cold - possibly moisture in a vacuum line? I am not sure if the same problem that plagues air brakes might apply. No changes after long drive and entire engine compartment and firewall is heated up. Maybe the switch is getting vacuum but not working properly?

This car has been driven HARD for nearly 300,000k miles but never had any serious problems.

Thanks!

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  • angy423 Jan 08, 2009

    My van does not blow out the air right either. You can hear it blowing but not much comes out of the vents. I thought it was blower motor and it isn't. This along with multiple problems with my 2000 chevy venture.

  • ts60423 Jan 26, 2009

    Well, it appears that the filters for the cabin were plugged, regardless of the fact that they looked OK! I wrote the date on them this time so that I know when I replaced them last. I checked inside for debris and didn't find anything. I clean out my K&N filter more often then I change those cabin filters out.



    It still does not seem to move air as well as it should, even with the passenger side vents closed. Not sure what to look at next.

  • ts60423 Dec 16, 2009

    Where are the linkages located? I have a 2000 Venture and the dash vents do not blow much air. Resistor is good, heater core is good, blower is good.



    It seems like the vents just arent opening up like they should, but I dont know how they work and can't find any info.

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2001 Venture has similar problem primarily when defrost selected. Found that linkages for vent selection (under dash on driver side) were worn/loose and thus did not travel their full range of motion. Not repaired yet, just band-aided by adding a rubber band to pull on the defroster vent linkage to assist. Works ok for now.

Posted on Nov 17, 2009

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In your glove box there should be a trap door with TWO filters in it...they are SIDE BY SIDE, my guess is they are plugged up with ****, evey one cleans one but there is another one to the left...My 1997 venture has air coming out all vents, floor and top of dash...cant find the problem but I left the filter out and closed the little access door in the glove box and it has helped a lot

Posted on Jan 19, 2009

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