Water in diesel light issues

[Suffolk-Matt]

Starting getting this warning light come on after 5-10 mins of driving, this was about 2 months ago. Truck was due a service anyway so got the filter replaced and all was well again... After about 200 miles it has started to creep on every now and then, mainly when under load on hills.

 

Now i know its a simple job to just drain the filter but wondered where this extra water is coming from? Maybe a bad seal on the fuel filler cap? Tank breathers? Odd thing is that the light comes on and goes off again..... surely if theres water present its there?

 

MK5 Transit btw

[felixthelogchopper]

Starting getting this warning light come on after 5-10 mins of driving, this was about 2 months ago. Truck was due a service anyway so got the filter replaced and all was well again... After about 200 miles it has started to creep on every now and then, mainly when under load on hills.

 

Now i know its a simple job to just drain the filter but wondered where this extra water is coming from? Maybe a bad seal on the fuel filler cap? Tank breathers? Odd thing is that the light comes on and goes off again..... surely if theres water present its there?

 

MK5 Transit btw

 

You aren't using Biodiesel, are you?

[div_h]

You aren't using Biodiesel, are you?

 

Good shout that stuff goes all gunky and gooey, but there's a wee tap at the bottom of the filter you open too drain it

[onyx landscaping/fencing]

is the tank bellow 1/4 full most of the time?

[skyhuck]

May just be the higher amount of bio in all fuel now, there are a lot of issues with this lately, it forms a jell in your filter.

[treequip]

Dont underestimate the power of condensation.

 

Keeping the fuel tank full minimises it.

[felixthelogchopper]

Good shout that stuff goes all gunky and gooey, but there's a wee tap at the bottom of the filter you open too drain it

 

I used to run an old Maverick on the stuff and had so many problems that I went back to regular diesel. Final straw was finding a big ball of what I can only describe as jelly in the filter when the weather turned cold, and that was after 2 tanks of normal fuel. I do remember having a lot of trouble with water in the fuel, which I put down to a bad supply.

[Suffolk-Matt]

Not using Bio no.

 

Tank averages 1/2 full id say.

 

Not really had this issue before OR with my other diesel vehicles.

[Suffolk-Matt]

I used to run an old Maverick on the stuff and had so many problems that I went back to regular diesel. Final straw was finding a big ball of what I can only describe as jelly in the filter when the weather turned cold, and that was after 2 tanks of normal fuel. I do remember having a lot of trouble with water in the fuel, which I put down to a bad supply.

 

 

I have switched to a local garage now (within last few months anyway) and its a Texaco.

 

Surely the light would just stay on though no? Adding "drain the filter" to my daily routine may get annoying!!!

[NoRush]

The bio stuff is in all diesel now. New eu rules or something. With combines they advise you drain your tank when storing it for winter then changing you fuels filter before and during use. Same with anything diesel if its been stood awhile. If it ain't loosing power don't worry. But do check it regularly