Forum Discussion

Gotago2's avatar
Gotago2
Explorer
Jun 06, 2013

Water in Air Box Wet Air Filter

I have a 2011 Itasca Sunstar (F53 chassi)that has a 2” space in the front grill that lines up with the air filter intake. If caught in a heavy rain at highway speeds it sucks in rain water, enough where there is water in the bottom of the filter box and the filter is soaked.
2 questions:
1- Is the filter still good after it dries?
2- Has anyone modified their intake to prevent it from sucking in water?
Thanks for any help or suggestions you may have.
  • I extended the intake hose about 30" to the corner behind the wall in front of the passenger side taking it away from the direct flow of water coming through the hood area. I am also thinking of replacing the filter with a K&N type filter to compensate for the loner intake hose. I don't know if it will work but it's worth a try.
  • Just go to the ford dealership and order the part you need.
  • Gotago2 wrote:
    Thanks all. I guess I"ll work on that elbow idea and come down 18-24".


    The system referred to by 427435 is totally different than the one on your Sunstar. The older version uses a cylindrical air filter canister in the vertical position. The newer F53 chassis uses a rectangular filter box at the top of the radiator. I doubt anything from the previous design would fit on your vehicle.

    This is the first incident of water ingestion I've heard of on the new style air filter. Have you contacted Ford about this problem?
    http://www.ford.com/help/contact/
  • Thanks all. I guess I"ll work on that elbow idea and come down 18-24".
  • But I would replace the air filter if is the dry paper type and buy a spare.
  • Mine has an elbow and about an 18" tube sticking down from the air cleaner body itself. That was the original OEM setup. Mine also has a piece of sheet metal that goes half way around the bottom of the 18" tube (sheet metal is on the front of the tube) that sticks down another 4-6". I don't know if that was Ford's original fix or if a previous owner added it.

    I have driven in some heavy rains without any problems.

    The eventual fix from Ford included a "J" tube hanging down from the air cleaner with a water drain at the bottom of the "J".
  • had the same problem on my '99 Chieftain....at that time there was a fix from Ford done free...don't know about now...I would think Ford would have a design change