cabin air filter location
Thread Starter
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Elder User
Joined: May 2003
Posts: 520
Likes: 1
From: california
I placed a charcoal filter in the air duct I thought it worked, but now I still get that occasional exhaust smell. I checked for leaks at the up pipes and all around the exhaust route. The only place I can figure where the exhaust is coming from is the EBPV. I may have to plug that.
Just in case any of you want to try the filter. I took out the glove box to access the plenum cover. I got a universal cut to fit charcoal filter from Home Depot that had a plastic grate. I screwed in two screws part way in to the back of the plenum so the filter doesn't fall forward. IIRC, I cut about a 7x7 piece of filter. I slid it into place and the fit seemed fine. It seemed to work, but it definitely does not stop skunk odor. I'll change it out now that I notice the exhaust smell again.
Just in case any of you want to try the filter. I took out the glove box to access the plenum cover. I got a universal cut to fit charcoal filter from Home Depot that had a plastic grate. I screwed in two screws part way in to the back of the plenum so the filter doesn't fall forward. IIRC, I cut about a 7x7 piece of filter. I slid it into place and the fit seemed fine. It seemed to work, but it definitely does not stop skunk odor. I'll change it out now that I notice the exhaust smell again.
Hotshot
Joined: Jan 2002
Posts: 17,988
Likes: 207
From: La La Land
Just in case any of you want to try the filter. I took out the glove box to access the plenum cover. I got a universal cut to fit charcoal filter from Home Depot that had a plastic grate. I screwed in two screws part way in to the back of the plenum so the filter doesn't fall forward. IIRC, I cut about a 7x7 piece of filter. I slid it into place and the fit seemed fine. It seemed to work, but it definitely does not stop skunk odor. I'll change it out now that I notice the exhaust smell again.
Pop
Postmaster
Joined: Jul 2004
Posts: 3,156
Likes: 0
From: Yuba City, CA.
New User
Joined: Oct 2009
Posts: 23
Likes: 0
Damn...you guys are good. Found the "valley" and sure enough there was a pool of diesel there. I've been meaning to change the fuel filter, so if I change the filter and the O-rings (from guzzle) will that take care of it?
Postmaster
Joined: Jul 2004
Posts: 3,156
Likes: 0
From: Yuba City, CA.
Well, if that's where your leak is coming from. I would change all the above.
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More Turbo
Joined: Oct 2008
Posts: 657
Likes: 4
From: Pueblo, CO
FWIW, I have recently dismantled two Excursions (1 2000 gasser and 1 2002 PSD). Neither one had a cabin air filter or any provisions for it. Maybe it was a later model item??? I had the A/C unit completely out of each truck - nothing there... I was surprised. Unless I missed something - twice?
Laughing Gas
Joined: Nov 2004
Posts: 790
Likes: 35
From: Austin
There is an air filter/port/screen behind the rear seats on the back wall of the cabin. It vents to/from the area behind the cab, but before the bed starts. It's not hooked up to the AC, at least as far as I could tell, but smells can come in through there.
Duct Tape Tech.
Joined: Jul 2009
Posts: 2,381
Likes: 1
From: San Antonio Tx.
If you can't find an exhaust leak at the up pipes, you should start looking in the exhaust manifold area. My left manifold was leaking, the way I found it was to get under the truck with the engine running. I used a medical stethoscope with a 1/4" x 1' long piece of copper tubing stuck in the end. It didn't take long to find it.
I took the manifold off and had it resurfaced at a local automotive machine shop. Problem solved.
I took the manifold off and had it resurfaced at a local automotive machine shop. Problem solved.
Thread Starter
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Elder User
Joined: May 2003
Posts: 520
Likes: 1
From: california
I'll use a heater hose to search for the leak at the exhaust manifolds.
So, I changed out my charcoal filter before my last road trip. It definitely filtered particulates. I snapped pics this time. I did the change at night, but I think the pics will give you guys a better idea.
Now how do I post pics?
So, I changed out my charcoal filter before my last road trip. It definitely filtered particulates. I snapped pics this time. I did the change at night, but I think the pics will give you guys a better idea.
Now how do I post pics?