Tdi Fuel Filter

[Guest Sockett]

HI, Wondered if any of you guys could tell me which pipes go ware on my tdi fuel filter. I've just bought the car and seam to be having a fuel problem so I

[SPIKEYJIMBO]

Hello Sockett,

If you check my post called smokey tdi member Chris has posted a pic of his fuel filter on there, (page 2 I believe) have a look at that and see if it matches yours. not sure on the year of your tdi but mine is a mark 2 and looks like chris's..

 

Hope this helps

James

[seatkid]

Hello Sockett,

If you check my post called smokey tdi member Chris has posted a pic of his fuel filter on there, (page 2 I believe) have a look at that and see if it matches yours. not sure on the year of your tdi but mine is a mark 2 and looks like chris's..

 

Hope this helps

James

Looking from the front of the engine towards the back of the vehicle.

 

Right hand pipe to rear of car.

Middle pipe to front of car.

T piece is on the left. Dont think it matters which way round that goes. (if theres an arrow on the t piece then that would point to the back)

 

On a mK2 the r/h pipe goes to the tandem fuel pump on the engine which is a dual fuel/vac pump. On the mk1 it goes straight to the injector pump.

 

On the Mk 2, the fuel filter may have a plastic T piece fitted to it containing a thermostatic valve. If you have had a filter change recently, the two O rings may have been fitted incorrectly. They are very nearly the same size and are coloured blue and black. The blue one should be furthest away from the filter top. Remove the clip and lift the t piece carefully to check.

 

Mk1 photo

Edited February 23, 2011 by seatkid

[seatkid]

Mk 2 Fuel filter (from Chris)

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[Guest Sockett]

If the vac/fuel pump was faulty do you think it could be causing my judder/misfire?

[seatkid]

If the vac/fuel pump was faulty do you think it could be causing my judder/misfire?

Unlikely I would have thought (but see below)

 

first check those O rings as they are sometimes lost when the fuel filter is changed. Having said that, I didnt notice any O rings on my Mk 1 filter(wasnt looking for them when I changed the filter). Its easy to remove the big clip that holds down the T piece and just lift the T piece up with the two pipes still connected.

 

common causes for judder/misfire on PD engines include:-

 

faulty injector wiring loom or dodgy connectors to injectors - sometimes just cleaning them fixes this.

 

worn camlobes on injector camshaft due to incorrect (non-PD spec) oil being used

 

could also be faulty injector or fuel pump usually as a result of misfuelling (putting petrol instead of diesel in tank)

 

BTW I assume you have a PD engined Mk2 (post 2000)

 

Might also be a faulty DMF

Edited February 23, 2011 by seatkid

[Guest Sockett]

Thanks very much ill check fuel filter and injector's this weekend , Hope its not Dmf :)