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Where is my cabin airfilter
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jasd65
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Jul 13, 2012, 5:21 PM
Post #1 of 13
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Where is my cabin airfilter
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2003 ,ford,expedition, 5.4, 149,000
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Hammer Time
Ultimate Carjunky
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Jul 13, 2012, 5:23 PM
Post #2 of 13
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Re: Where is my cabin airfilter
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You don't have one.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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Jul 13, 2012, 5:24 PM
Post #3 of 13
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Re: Where is my cabin airfilter
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It don't have one.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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jasd65
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Jul 13, 2012, 5:50 PM
Post #4 of 13
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Re: Where is my cabin airfilter
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Wow that explains a lot so what can keep air from flowing to the vents it come through defrost vent but no where else!!!
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jasd65
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Jul 13, 2012, 5:52 PM
Post #5 of 13
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Re: Where is my cabin airfilter
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 whats stopping air flow it coming through the defrost vents only!!!
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Hammer Time
Ultimate Carjunky
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Jul 13, 2012, 5:54 PM
Post #6 of 13
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Re: Where is my cabin airfilter
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The air isn't being stopped, it's being redirected.
The mode selection is done through a series of air doors that are operated by vacuum. When there is either a partial or total loss of vacuum, the system will default to either defrost or on some vehicles, heat. Acceleration can also have an effect on the doors for the same reason.
Look under the hood for a small black plastic hose coming through the firewall. Follow it to the vacuum source looking for any breaks, cracks or leaks. Also follow any other lines that branch off because they may go to a vacuum reservoir (storage tank) and a leak there will cause the same problem. Using a vacuum gauge to determine if you have full vacuum at any given point is the best way to find it. You can cut into the line anywhere and splice it back together with a piece of vacuum hose. Find the broken line, you found your problem.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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Jul 13, 2012, 6:07 PM
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Re: Where is my cabin airfilter
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Does this have automatic temperature control?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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jasd65
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Jul 13, 2012, 6:09 PM
Post #8 of 13
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Re: Where is my cabin airfilter
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 1st thing in the morning its to dark now and the bugs are very "ruff" I'll let u know after then. Thanks for your help so glad I signed up !
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Discretesignals
Ultimate Carjunky
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Jul 13, 2012, 6:20 PM
Post #9 of 13
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Re: Where is my cabin airfilter
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HT's advice is important, so you should follow his advice first for sure.
If you don't find any leaks and you have vacuum at the control panel, it's common on those EATCs for the solenoid o rings inside the panel to leak which will cause default to defrost or you'll have wackiness going on with vent selection. You can either replace the panel (expensive) or you can re o-ring the solenoids. Check out this link for more information:
http://autoforums.carjunky.com/...search_engine#101374
Hopefully you find a broken vacuum line.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 13, 2012, 6:21 PM)
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jasd65
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Jul 14, 2012, 5:46 PM
Post #10 of 13
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Re: Where is my cabin airfilter
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Hammertime u nail it thank u, thank u ,thank u! Now what would be your next step or whats the best ac system to check it and to keep it running good thanks again!!!
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Hammer Time
Ultimate Carjunky
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Jul 14, 2012, 5:50 PM
Post #11 of 13
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Re: Where is my cabin airfilter
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If the air is coming out where it should and it's as cold as it should be, then just leave it alone. Make sure the condenser fans are always working properly if you have electric and the fan clutch is pulling good air if you have that type..
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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jasd65
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Jul 14, 2012, 5:58 PM
Post #12 of 13
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Re: Where is my cabin airfilter
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I did alone with some bad rubber line all on the same side it just blew me away u all are the best thing how do they say it slice bread! thanks a lot!
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Hammer Time
Ultimate Carjunky
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Jul 14, 2012, 6:33 PM
Post #13 of 13
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Re: Where is my cabin airfilter
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You're welcome. Glad we could help.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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