2002 Ford Explorer - Climate Control Problems
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2002 Ford Explorer - Climate Control Problems
My climate controls on my 2002 Ford Explorer are acting weird:
When I put it on any of the 2 floor settings, shown in the picture with the arrow for some reason, it just blows out the defrost vent on top only. I found the picture online. Does anyone have a clue what could be wrong? It would be greatly appreciated, thank you very much.
When I put it on any of the 2 floor settings, shown in the picture with the arrow for some reason, it just blows out the defrost vent on top only. I found the picture online. Does anyone have a clue what could be wrong? It would be greatly appreciated, thank you very much.
Logistics Pro
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From: Cedar Rapids, IA
With the manual (aka: ****) system, the various doors are controlled by vacuum motors. The system is design to "fail safe" to the defrost position if vacuum is lost. It sounds like somewhere your system is losing vacuum, either through the vacuum switch behind the control ****, or through a line that is active when the floor positions are selected.
-Rod
-Rod
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With the manual (aka: ****) system, the various doors are controlled by vacuum motors. The system is design to "fail safe" to the defrost position if vacuum is lost. It sounds like somewhere your system is losing vacuum, either through the vacuum switch behind the control ****, or through a line that is active when the floor positions are selected.
-Rod
-Rod
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All the vacuum lines are connected, is there any thing else that could be the issue, because it was working before no problem.
Logistics Pro
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From: Cedar Rapids, IA
They may be connected, but are they in good shape all the way from the vacuum source to the vacuum motors? With the engine running, can you hear a hiss? Do you have vacuum to the vacuum switch?
"Working before" what? Did they stop working after some maintenance or work was performed (including under the hood)?
-Rod
"Working before" what? Did they stop working after some maintenance or work was performed (including under the hood)?
-Rod
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They may be connected, but are they in good shape all the way from the vacuum source to the vacuum motors? With the engine running, can you hear a hiss? Do you have vacuum to the vacuum switch?
"Working before" what? Did they stop working after some maintenance or work was performed (including under the hood)?
-Rod
"Working before" what? Did they stop working after some maintenance or work was performed (including under the hood)?
-Rod
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you have a loss of vacuum.. It can be a small hose at the firewall of the engine compartment, it can be a crack in the line from the motor manifold, or it can be a leak on the hoses of the switch or internal to the ports themselves. You need to start somewhere. After inspecting under the hood and at the firewall TEE ( maybe between the glove box aad center of the firewall).... if its not visible there, the I would pull the supply hose off the control **** and check supply vacuum, or pull vacuum on the switch inlet hose and see if the cylinders move full stroke.
Hotshot
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about 4 posts down is a drawing of the system, hoses, lines, and cylinders.
https://www.ford-trucks.com/forums/9...-please-2.html
https://www.ford-trucks.com/forums/9...-please-2.html
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about 4 posts down is a drawing of the system, hoses, lines, and cylinders.
https://www.ford-trucks.com/forums/9...-please-2.html
https://www.ford-trucks.com/forums/9...-please-2.html
Logistics Pro
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From: Cedar Rapids, IA
If you have a and vacuum pump like what you would use to bleed brakes, you could use one of the fittings to test the vacuum motors for those positions on the right side of the ****. Unplug the vacuum manifold and place the pump on the hoses to the vacuum motors one at a time. Pull a few inHg and see if the system holds a vacuum. If not, the issue is between the manifold and the motors. If so, the issue is likely with the seals in the switch.
-Rod
-Rod
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