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Topic: WATER IN FUEL :-( (Read 2712 times) previous topic - next topic

Re: WATER IN FUEL :-(

Reply #25
Does anyone know where a moisture sensor that triggers VMS & Cummins Diagnostic errors, is located?  Is the add-on fuel filter sensor wired to engine computer?

Re: WATER IN FUEL :-(

Reply #26
Today I purchased ISO-HEET and BIOBOR JF. Before the 350 mil trip back home this Saturday should I put in HEET and BIOBOR together or just HEET for the trip and when we get home as usual fill it up and put in BIOBOR for sitting parked for few weeks?
Thank you,
Al
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: WATER IN FUEL :-(

Reply #27
Does anybody know if Heet will migrate to the bottom of the tank in order to actually absorb the moisture, or just float on top of the diesel fuel?
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: WATER IN FUEL :-(

Reply #28
PHRED  ----  The HEET will chemicaly combine with the fuel and be there until it is used up in the process of eliminating the water.  The more water in the tank, the more HEET that will be necessary.  I think that it is good to just run some in the tank all of the time if you run alot in humid environments.  The humidity in the air condenses in the tank as you burn fuel and air is pulled into the tank.  That is the reason for the fuel filters with sediment bowls on them.  Some even have drains.  All of the old cars I used to have had sediment bowls on the gas line just before the carbuerator.  I think that in this age of chemicals that the standard now is chemical treatment in lieu of separation and draining.  In any event, just dump it in as you feel needed and have fun driving.    Have a great day  ----  Fritz
Fritz & Kathy Johnson
1991 36'

Re: WATER IN FUEL :-(

Reply #29
You can get a sample from the bottom of the tank using 4' of cheap plastic hose, a metal coat hanger and some zip ties.  Straighten the coat hanger and bend it to allow you to reach the bottom of the fuel tank. Zip tie the hose to it so that you can get the end of the hose to the bottom of the tank.

Lean the coach so that your fuel fill is the LOWEST point of the tank.  Wait at least a half hour for water to run downhill.

Suck on the other end of the hose until you see fuel in the hose.  Remove hose/coat hanger from tank and pour into glass jar.  What do you see?
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: WATER IN FUEL :-(

Reply #30
Or buy a jiggle siphon and keep the fuel as something you don't know the taste of.
Toby a 94 u280
Cummins 8.3
6 speed Allison
Exhaust brake


Adopted by Derek and Annabelle

Re: WATER IN FUEL :-(

Reply #31
Or buy a jiggle siphon and keep the fuel as something you don't know the taste of.

Ya, another alternative.  But, with clear plastic hose, you would really have to WANT to taste fuel to suck it that last couple of feet.

A personal choice, but I prefer other forms of refreshment!
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020


Re: WATER IN FUEL :-(

Reply #33

A VERY long list of liquids preferable to diesel.  Yes, Crown Royal would be in the top 1/4 on the list.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: WATER IN FUEL :-(

Reply #34
Crown is good but I am really digging forty creek these days
Toby a 94 u280
Cummins 8.3
6 speed Allison
Exhaust brake


Adopted by Derek and Annabelle

Re: WATER IN FUEL :-(

Reply #35
Barry, I guess you are not going to get an answer to your question that started this thread. Seems every one is into drinking diesel and rye whiskey, oh with water by the sounds of it!!! ^.^d
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: WATER IN FUEL :-(

Reply #36
Thanks John for getting us back on track. 

Anyone know how engine computer senses there is water in fuel?

See you in Quartzsite John?


Re: WATER IN FUEL :-(

Reply #37
We use a $10 drill pump to pump fuel from bottom of tank into gallon glass jar, and then let jar sit still for a couple of days.

Re: WATER IN FUEL :-(

Reply #38
Usually the sensor is in the bottom of the filter assembly in the separator part. Quite often there is a drain there too. Put in the magic chemicals and drain the separator.
Toby a 94 u280
Cummins 8.3
6 speed Allison
Exhaust brake


Adopted by Derek and Annabelle

Re: WATER IN FUEL :-(

Reply #39
There was a sensor on my isc at the filter on the engine not the rancor one under the side compartment.
2025 Wanderbox Outpost 32 on F600 Expedition Motorhome
2015 Born Free Royal Splendor on Ford 550 nonslide version  for sale
Former Coaches  covering. 360,000 miles
1999 34 U270
2000 36 U320
2001 42' double slide U320
2018 Jeep Rubicon

Re: WATER IN FUEL :-(

Reply #40
This is the sensor wire connection  that disconnected and caused our check engine light recently. Simple as inserting and. Seating properly to stop problem.
Randy (N4TDT) and Karen Crete
Sarasota, Florida
SOLD:  2000 U270 34' WTFE Build 5756 "Ole Red"

Re: WATER IN FUEL :-(

Reply #41
Exact same thing happened to us during a heavy rain storm. Check the sensor wire coming out of the bottom of the secondary fuel filter which is mounted on the passenger side of the engine. In our case  this sensor wire came loose. Re-seated it and check engine light went off.  This sensor wire is  what reported water in fuel.

Remember, this is not the primary fuel filter which is located near the engine start batteries. It is the secondary filter mounted to the engine which has the sensor wire connected to it.

I don't see any wires "coming out of the bottom" on our "secondary fuel filter" There are some on the top (I think) but hard to see, there is a bundle of wires pipes and hoses.
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: WATER IN FUEL :-(

Reply #42
The water-in-fuel sensor is usually on the primary filter.  It works by sensing the change in electrical conductivity of the fuel caused by water.
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R

Re: WATER IN FUEL :-(

Reply #43
On our ISC it is on secondary fastened to block.
JohnH

Barry we will still be in Mexico so will miss Q
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: WATER IN FUEL :-(

Reply #44
I think heet is alcohol based allowing water and fuel to mix
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: WATER IN FUEL :-(

Reply #45
We just got home without any issues. I ended up putting only 4 containers of ISO HEET.  4 is good for 80 gal. I had about ~130 gal of diesel. I did not change fuel filters, they are 7K mil new and there was no water in the sample I had drained from the primary fuel filter. I have no clue where and how "water in fuel" alarm and diag came from for about 40-50 mil. Perhaps it was the sensor.
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: WATER IN FUEL :-(

Reply #46
If you don't find a threaded collar on the bottom of the replacement filter, you may have the Baldwin BF1329 which doesn't use the clear bowl. The Baldwin BF1329 has a valve to open on the bottom of it for draining the filter and it can replace the Racor just fine. I used the Baldwin BF1329 through a couple of filter change cycles. Not having to deal with the separate clear bowl is convenient, especially if you will have to change the primary filter several times in short intervals to deal with a load of bad fuel. The only difference is that you don't have the clear bowl .................
Don

Don, et al,

While subject is fresh.  Please see attached pictures. I am puzzled with primary fuel filter. Part number on the current filter and the one I purchased are same but one has the clear bowl and the other (new one) don't have it. I somehow thought there is a way to remove and attach the clear bowl to new filter.

Link to pictures of primary fuel filter on google pictures.

So what do you do, punch a hole to the under side of the new filter where the clear bowl will screw on?


Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: WATER IN FUEL :-(

Reply #47
From post #18:

And, with the clear bowl filter, buy a spare bowl.  Fit it on the new filter and then you can remove and clean the old one at your convenience.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: WATER IN FUEL :-(

Reply #48
From post #18:

And, with the clear bowl filter, buy a spare bowl.  Fit it on the new filter and then you can remove and clean the old one at your convenience.
Thank you Brett. I do recall your response #18. I am struggling attaching pictures. Just done some work on my laptop. Please standby let me attach some pictures.  Sorry about this.
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: WATER IN FUEL :-(

Reply #49
Don, et al,

While subject is fresh.  Please see attached pictures. I am puzzled with primary fuel filter. Part number on the current filter and the one I purchased are same but one has the clear bowl and the other (new one) don't have it. I somehow thought there is a way to remove and attach the clear bowl to new filter.

Link to pictures of primary fuel filter on google pictures.

So what do you do, punch a hole to the under side of the new filter where the clear bowl will screw on?



Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)