RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 
 


Reply
 
Thread Tools Display Modes
 
Old 07-24-2020, 03:34 AM   #1
Platinum Member
 
engnrsrule's Avatar
 
Join Date: Feb 2018
Location: VA
Posts: 179
Default Water in Fuel Filter Warning Light

I recently changed my diesel fuel filter on my Roadtrek Sprinter. Since then I have gotten the water in fuel filter warning light a few times. I have had the RV 2 years and never got this light before.

I follow the process to purge the water - Locate the purge hose on top of the filter assembly; Direct the hose into a container; Open the purge valve; Briefly turn on the ignition to turn the engine over. Close Purge Valve & restore purge hose.

After this process the light clears, but comes back a day or so later. Tank is 3/4 full and this has occured between trips. I do not want to be dealing with this on the road.

Has anyone experienced similar issues?
__________________

engnrsrule is online now   Reply With Quote
Old 07-24-2020, 12:27 PM   #2
Site Team
 
avanti's Avatar
 
Join Date: Jul 2013
Posts: 4,170
Default

Quote:
Originally Posted by engnrsrule View Post
I recently changed my diesel fuel filter on my Roadtrek Sprinter. Since then I have gotten the water in fuel filter warning light a few times. I have had the RV 2 years and never got this light before.

I follow the process to purge the water - Locate the purge hose on top of the filter assembly; Direct the hose into a container; Open the purge valve; Briefly turn on the ignition to turn the engine over. Close Purge Valve & restore purge hose.

After this process the light clears, but comes back a day or so later. Tank is 3/4 full and this has occured between trips. I do not want to be dealing with this on the road.

Has anyone experienced similar issues?
Sounds like you have water in your fuel tank and the filter is doing its job. Probably you got a bad batch of fuel somewhere.

I have no experience with this, but I gather from postings over at Sprinter-Source that this is not a Good Thing and can lead to very expensive repairs if ignored. I suggest you (a) go over there and do a search. IIRC, there is a Sticky thread on this topic; and/or (b) take a trip to your dealer or someone else qualified to drain and purge your fuel tank.

Again: my understanding is that this is not a trivial matter. The high-pressure fuel injection system is both fussy and expensive. That fancy filter system is there for a reason.
__________________

__________________
Formerly: 2005 Airstream Interstate (Sprinter 2500 T1N)
Now!: 2014 Great West Vans Legend SE (Sprinter 3500 NCV3 I4)
avanti is online now   Reply With Quote
Old 08-25-2020, 01:07 AM   #3
Platinum Member
 
engnrsrule's Avatar
 
Join Date: Feb 2018
Location: VA
Posts: 179
Default Solution to water in Fuel

Update to the problem... after several recurrences of doing the strip process for water in the fuel filter, I asked my diesel mechanic and he recommended Power Service Diesel Fuel Supplement & Cetane Boost. It is carried at Autozone.
Recently took a 900 mile trip and problem has not recurred.

I will add that I usually get fuel at Shell, but the last trip before this problem showed up I had used a Pilot Station.
engnrsrule is online now   Reply With Quote
Old 11-23-2020, 03:40 AM   #4
Platinum Member
 
engnrsrule's Avatar
 
Join Date: Feb 2018
Location: VA
Posts: 179
Default

Update...not sure what is going on with this, but I note that the water in fuel filter light comes on at every start up. I have gone thru the purge process and it goes away, but in examining the purged fuel there is no trace of water. I also found that if I turn the key to start, then off, then back on to start the light goes out. Ideas welcome...
engnrsrule is online now   Reply With Quote
Old 11-24-2020, 04:17 AM   #5
Platinum Member
 
Boxster1971's Avatar
 
Join Date: Mar 2012
Location: Maryland
Posts: 1,030
Default

Quote:
Originally Posted by engnrsrule View Post
Update...not sure what is going on with this, but I note that the water in fuel filter light comes on at every start up. I have gone thru the purge process and it goes away, but in examining the purged fuel there is no trace of water. I also found that if I turn the key to start, then off, then back on to start the light goes out. Ideas welcome...
I'd just change the filter again. Did you use an original quality filter when you changed it before the problem started?
__________________
2013 Airstream Interstate Lounge EXT on 2012 Sprinter 3500 170Ext
Formerly: 1973 Dodge B300 DIY pop-top conversion
Boxster1971 is offline   Reply With Quote
Old 11-24-2020, 01:14 PM   #6
Platinum Member
 
engnrsrule's Avatar
 
Join Date: Feb 2018
Location: VA
Posts: 179
Default

Thanks Boxster, I will give that a try. This is what I used...
https://www.amazon.com/dp/B00I8J1KZY...ing=UTF8&psc=1
engnrsrule is online now   Reply With Quote
Old 11-25-2020, 04:03 AM   #7
Platinum Member
 
Boxster1971's Avatar
 
Join Date: Mar 2012
Location: Maryland
Posts: 1,030
Default

Quote:
Originally Posted by engnrsrule View Post
Thanks Boxster, I will give that a try. This is what I used...
https://www.amazon.com/dp/B00I8J1KZY...ing=UTF8&psc=1
That is a cheap Chinese made fuel filter. Ecogard is a brand subsidiary of IPC Global Solutions that manufacturers most, if not all, their parts in China.

https://ipcglobalsolutions.com/about-ipc/our-company/

Mercedes vehicles just don't do well with lower quality parts. The Sprinter-Forum is full of stories about poor quality filters. Get and OEM filter from a dealer or try some of the online parts seller that sell OEM filters. I pay $120 for a OEM fuel filter from a Freightliner dealer for my 2012 Sprinter. But fuel filters for your Sprinter are cheaper.

You can likely get a fuel filter for your older Sprinter for $50-60 from NAPA. Apparently they sell the same OEM filter used by Mercedes at a much lower cost.

I assume your Sprinter is branded as a Dodge, or is it Freightliner? You might even be able to get a reasonably cost filter from a Dodge or Freightliner dealer.

Good luck.

- - Mike
__________________

__________________
2013 Airstream Interstate Lounge EXT on 2012 Sprinter 3500 170Ext
Formerly: 1973 Dodge B300 DIY pop-top conversion
Boxster1971 is offline   Reply With Quote
Reply

Thread Tools
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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 01:21 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
×