Fuel tank vacuum

M

Michaelpwilson

New Member

Posts

2

Location

Anglesey

• Apr 20, 2012

• #1

My 2.5TD is creating a vacuum in the fuel tank when I drive along, after a while you can hear the tank flexing and if I take the fuel cap off after a run a lot of air is sucked in. This was happening when I bought it, I replaced the push in cap with what I believe to be the correct one (STC4072) but it is still happening, is there something I'm missing?

 

Dr_evil

Banned

Posts

29,535

Location

Perched on the naughty step

• Apr 20, 2012

• #2

turtle

 

J

JohnnyDudeUK

New Member

Posts

28

Location

Dudley , West Midlands

• Apr 21, 2012

• #3

Hi Michael,

I'd guess that it's not a vacuum but pressurising the tank. I had this happen on mine and used a quick search on here to find the solution. Try "2.5TD Boost Diaphragm".

HTH

 

M

Michaelpwilson

New Member

Posts

2

Location

Anglesey

• Apr 21, 2012

• #4

Thanks form that I'll give it a go and let you know