T

Thudmaguffin

Member

• Sep 5, 2020

• #1

Hello, 300tdi goes lumpy at higher the revs. All lower revs ok.

Any ideas appreciated.

 

landowner

Pensioner Pete

Full Member

• Sep 5, 2020

• #2

Fuel filter ?

 

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Thudmaguffin

Member

• Sep 5, 2020

• #3

landowner said:

Fuel filter ?

Click to expand...

I'm going to loosen the nut on top of the filter housing and check for a good spurt.

 

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Thudmaguffin

Member

• Sep 5, 2020

• #4

Just started today.

 

landowner

Pensioner Pete

Full Member

• Sep 5, 2020

• #5

Yes that'll check lift pump at same time, worth new filter if it hasn't had one for a while

 

landowner

Pensioner Pete

Full Member

• Sep 5, 2020

• #6

If fuel ok and leak off pipes then it could be boost valve needle sticking (think that's what it's called) in that housing on top of pump. or a leaky pipe from turbo to pump