Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 03-24-2016, 04:45 PM   #1
thesoundguy's Avatar
Join Date: Oct 2015
Location: Cortez, Colorado
Posts: 56
Is the roof air scoop functional?

Understand I am basically a new motor home owner, so this might seem like a dumb question, but I think the only dumb question is the one that didn't get asked.

My question is about the supposed rear air scoop on my 2000 Monaco Diplomat. When I tried to run a video cable for my rear facing camera, I thought I might be able to access a run down the air scoop into the engine compartment, and then on to the front of the motor home. I have an electricians metal fish tape and began pushing it through the metal grate up on the roof, but to no avail. It seemed that I could find a way into the compartment, the air cleaner, etc..

Now, comes my questions:
Where does this duct go, if anywhere?
Can I seal that up and endanger engine performance?

I'm having a rain leak problem in the very back of the motor home. I've tried sealing up everything on the roof, along the roof rails, at all the side panel seams, and also replaced the slide seal back there. It's not as bad, but still gets wet, and I'm wondering if it's leaking somehow through that fresh air duct.

Positive suggestions are appreciated. Wise a** remarks will be ignored.

thesoundguy is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-24-2016, 05:06 PM   #2
Senior Member
BFlinn181's Avatar

Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 17,889
I believe the air scoop is attached to your air filter. You could loosen the clamp on the filter and pull the intake flex tube off and see it the tape comes out there. The air intake is often high since it's in the rear and would be subject to road dust from the tires.


Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 03-24-2016, 10:22 PM   #3
"Formerly Diplomat Don"
Dutch Star Don's Avatar
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 10,122
"thesoundguy"....The air pick up at the top of the coach is typically a sealed box so that it only draws outside air. At it's base, a metal tube is connected that runs down to your air cleaner. Somewhere the pipe usually curves and there is a rubber flapper (low point) that allows water to drain out if ingested by the air pick up. It's the only air the engine gets, so don't cover it.

Here is a suggestion. Remove the air pick up grate and see if you can drill a cable sized hole near the base of the box. Run your cable through it and then seal with some silicone. This will get your cable alongside the metal air tube, but outside of it.

You could also remove a rear running light and see if you can get your fish tape down to the engine compartment. If it works, you can drill a hole near the center running light and run your cable down to the engine bay.
Don & Mary
2014 Newmar Dutch Star - All Electric - 450 ISL
2016 GMC Canyon 4WD Crew Cab
Dutch Star Don is offline   Reply With Quote
Old 03-25-2016, 09:08 AM   #4
Senior Member
JohnBoyToo's Avatar

Monaco Owners Club
Join Date: May 2012
Location: DFW, Tex-US
Posts: 5,030
Ditto on my Diplomat ---

Are you saying there is NOT an 8 inch or so diameter 'hose' down to your air cleaner ?!?!?
See mine in the 2nd pic coming in from the right?)

Even WITH that high intake I find my ac filter has ALL kinds of small 'rocks' that have dropped on the outside of the filter in the canister !!!
Attached Thumbnails
Click image for larger version

Name:	2015-11-15 009.jpg
Views:	53
Size:	369.5 KB
ID:	122279   Click image for larger version

Name:	2015-11-15 010.jpg
Views:	53
Size:	240.4 KB
ID:	122280  

'11 Monaco Diplomat 43DFT RR10R pushed by a '14 Jeep Wrangler JKU. History.. 5'ers: 13 Redwood 38gk, 11 MVP Destiny, Open Range TT, popups, vans, tents...
JohnBoyToo is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
No functional roof vent on black tank? CountryFit Country Coach Owners Forum 6 03-07-2016 09:20 AM
Side Air Scoop kawliga Newmar Owner's Forum 1 08-13-2015 11:01 AM
Air Scoop remounting? Mike Gamble Alpine Coach Owner's Forum 9 02-20-2013 03:27 PM
Scoop for Engine Air Intake William Willard Monaco Owner's Forum 10 12-15-2010 05:32 PM
Avatar not functional Brigadoon Forum 101 | Announcements | Member Concerns 9 06-09-2005 12:19 PM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:08 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.