kazc1974

Member

• Nov 18, 2015

• #1

Hi I have a 1997 manual discovery 300tdi, she was not reviving and kept cutting out, changed the lift pump and fuel filter (from landrover) had the fuel lines blown out, checked for blockages under the sender unit and she is still doing the same thing, anyone have any other ideas on what I could try please

 

vilguy

Do'er of stuff and the like

• Nov 18, 2015

• #2

even with the lift pump gone down the main pump has sufficient oomph to keep it going without cutting out and generally get you to around 60mph (give or take)

Does it start ok?
Could be air leaking into the lines.

 

kazc1974

Member

• Nov 18, 2015

• #3

It starts but runs very rough, after a few revs cuts out, after driving it for about 5 minutes it won't go over 5mp

 

jamesmartin

Well-Known Member

• Nov 18, 2015

• #4

could be injection pump or poor feed to it, you could check feed using a clear plastic pipe in line between front banjo on pump and filter

 

kazc1974

Member

• Nov 18, 2015

• #5

He is going to try that now

 

kazc1974

Member

• Nov 18, 2015

• #6

He has bypassed the lift pump and filter and fed it direct to the injector pump and it worked fine, as soon as he re connected everything it played up again

 

julianf

Well-Known Member

• Nov 18, 2015

• #7

Did he try the clear pipe?

When i re-plumbed my hs2.8 (300tdi clone) i used clear (hard nylon) from the sedimenter onward, and you can instantly spot air ingress then, and pinpoint where its getting in.

 

julianf

Well-Known Member

• Nov 18, 2015

• #8

ps.

ive found the olives on the lift pump a pain to get to seal before

 

kazc1974

Member

• Nov 18, 2015

• #9

Thanks for all your help, he said it was the feed pipes on the wrong way haha

 

Last edited: Nov 19, 2015

jamesmartin

Well-Known Member

• Nov 18, 2015

• #10

kazc1974 said:

Thanks for all your help, he said it was the feeds pipes on the wrong way haha

Click to expand...

very common fault ,surprisingly overlooked