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Old 10-13-2019, 10:12 PM   #1
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Dash Noise

So we drove from Albuquerque Balloon Fiesta to Angel Fire. That was a drive up over the Taos Canyon at about 9100 ft. We arrived and I noticed a noise in the left corner of the dash at sounds like a actuator for a vent that just continues to run. It is not the fan as the fan shuts off when I select off on the dash HVAC control. I have shut off and turned on several times and the noise starts up as soon as I turn on the key. I noted the altitude in case it is some vacuum actuator that is not able to get enough presure

Any ideas?
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Old 10-14-2019, 06:02 AM   #2
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It is probably the vacuum pump for the vents making noise. Make sure you have no leaks as the vacuum hose will crack and keep the pump running
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Old 10-14-2019, 09:14 AM   #3
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Yep vacumn pump mine did the same thing coming over the rockys I finally pulled over and un plugged it.
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Old 10-14-2019, 10:12 AM   #4
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Where is the pump location?
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Old 10-14-2019, 12:56 PM   #5
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Quote:
Originally Posted by XBoater View Post
Where is the pump location?

Out front . . . Open the front hood and it is a rectangular box mounted on the front fire wall.
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Old 10-22-2019, 10:31 PM   #6
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Thanks,

I found the pump and disconnected the power. No more noise. I plugged it in before leaving Angel Fire, 8400 ft elev and the pump ran for about 90 seconds, no stopping so I unplugged it. We arrived in Holbrook AZ at about 5000 ft elev. Before leaving, I re-connected the power to the pump, it ran for the usual 20 seconds and stopped. No more problems. It clearly have something to do with the altitude that the pump did not build up enough vacuum to stop.
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Old 10-29-2019, 07:27 PM   #7
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Quote:
Originally Posted by XBoater View Post
Thanks,



I found the pump and disconnected the power. No more noise. I plugged it in before leaving Angel Fire, 8400 ft elev and the pump ran for about 90 seconds, no stopping so I unplugged it. We arrived in Holbrook AZ at about 5000 ft elev. Before leaving, I re-connected the power to the pump, it ran for the usual 20 seconds and stopped. No more problems. It clearly have something to do with the altitude that the pump did not build up enough vacuum to stop.


If my dash heat knob is in the off position, and ignition is on, my pump runs for about 12 seconds, then off for 3, then on for 12, etc. But if I turn the
knob to any other position - it only comes on when it is needed to move one of the internal duct flaps. My solution is just donít leave the knob in the off position.
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Old 10-30-2019, 08:30 AM   #8
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Leaks at actuators

Quote:
Originally Posted by corprimo View Post
If my dash heat knob is in the off position, and ignition is on, my pump runs for about 12 seconds, then off for 3, then on for 12, etc. But if I turn the
knob to any other position - it only comes on when it is needed to move one of the internal duct flaps. My solution is just donít leave the knob in the off position.
Your air hoses are cracking. Unplug the hose ends at the actuators, cut off about 3/8Ē to 1/2Ē. Genteelly clean the new end because to hard and the outer layer of the hose may crumble in your hand. Then reinsert them in the rubber coupler and you might fix your air leaks.

I had my complete air hose assembly removed and replaced about two years ago while having other work done. Best of luck.
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