Temp door actuator problem , maybe . Your best bet , take it to a qualified repair shop.
Probably the same as chevy truck ,watch this https://www.youtube.com/watch?v=Eqf-H3CO...
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SOURCE: no air flow to dash vents and feet vents
99% of the time when they do that it is the control head. that is the thing you adjust all your temp settings on. have to purchase from dealer. have last eight digits of vin # when ordering.
SOURCE: Air conditioning fan makes loud noise the faster you ru it.
Concerning your broken vent -- this can be caused by a broken linkage or a malfunctioning servo motor as well. these vent have air ducts the sway back and forth to adjust the dual air flow function. if the servo o linkages are malfunctioning or not connected for some reason, it will not allow total control of the air flow and temperature range. Now, if you have a combination of a flow error and temperature error as well, thai can be caused by a combination of the two.
In this case, you will need to inspect the linkages as well as the servo motor function as well. in addition, i would test the air temp sensors for there operational value. they control the temp when you adjust the coll or hot function.
Concerning the Loud noise coming from the blower fan---
This issue can be caused by a misalignment within the blower housing or, it can also be caused by some minor damage within the motor itself, causing it to rotate in a erratic manner, in return, forcing it to rub against the housing itself. the best solution here is to extract this blower fan housing and inspect for lose fan propeller and motor stability. replace parts accordingly.
PLease rate and have a great day:)
SOURCE: Air Conditioner Problems
Check for a vacuum leak. The vacuum cannister under the evap. case will crack and cause a leak. I just install a new vacuum cannister,check valve and hose going to inside of van.
SOURCE: 2004 toyota sienna a/c not working one side cold other side warm
there are two a/c lines that run down the fire wall under the van to the rear.right around the bottom of the fire wall the is a connection point on both lines. you will find a leak there .replace the orings and recharge system. also you will need two specail toyota tools to release the couplings.i have done this repair on several sienna's. let me know if this helps.
SOURCE: 2003 ford van e350 rear air vent is not blowing
Try this article. I have the same problem and I think it is the vacuum motor that controls the door for changing from hot/cold in the rear heater box (located inside behind the L rear wheel)
https://www.fleet.ford.com/truckbbas/non-html/Q19.PDF
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Hi Jeff, thanks for the heads up.
Can you help with a DIY solution please?
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