300tdi lift pump?

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
F

fcukworkridemotocross

New Member
Posts
17
Location
somerset
300tdi disco wont really pull in 4th and 5th and lumpy/smokey when started from cold!! have replaced fuel/air filter,cleaned sedimiter/intercooler/hoses. my lift pump wont manualy pump fuel out of bleed on the filter and has no resistance! i take it the lift pump pulls fuel from the tank into the filter when motor is running? how do they break and would it cause these kind of problems? any help would be great as getting bloody fed up now:(:)
 
The engine has to be in the right postion to operate the lift pump with the lever, try turning it over half a turn (breaker bar with 27mm socket on the pulley nut on the front of the crank shaft) and try again.
I thought when they were giving up you got lack of power when pulling up hill, nothing to do with cold or not
 
Richard Martin said:
The engine has to be in the right postion to operate the lift pump with the lever, try turning it over half a turn (breaker bar with 27mm socket on the pulley nut on the front of the crank shaft) and try again.
I thought when they were giving up you got lack of power when pulling up hill, nothing to do with cold or not
Click to expand...

yeah tried turning motor over half a turn and nothing!! def losing power on hills but also 4th and 5th in general unless going down hill! seems to get hard to rev out in 3rd and flat there after!
 
lift pump could be shot but also look at the sedimentor bowl as it may need cleaning, it's located on the chassis rail to the rear drivers side, also check for splits/leaks in pipe work and also the tank sender unit tends to rust and prevent fuel pulling from the tank to pump.
hope that helps

Nick
 
nickh75 said:
lift pump could be shot but also look at the sedimentor bowl as it may need cleaning, it's located on the chassis rail to the rear drivers side, also check for splits/leaks in pipe work and also the tank sender unit tends to rust and prevent fuel pulling from the tank to pump.
hope that helps

Nick
Click to expand...

yeah cheers, checked this at weekend and yes was full of munk, good clean and made her tick over smoother but nothing else,pipes seemed ok aswell.
 
fcukworkridemotocross said:
yeah cheers, checked this at weekend and yes was full of munk, good clean and made her tick over smoother but nothing else,pipes seemed ok aswell.
Click to expand...

my bro in law had similar problem, he changed the lift pump coz it was fooked, but problem was still the same,
it turned out to be the fuel sender,
the top pipes corroded but only slightly and it was pulling air in, enough to make it run like crap and pull badly
a new sender unit and it goes like **** off a hot shovel, he just needs to MOT it now
 
Last edited:
nickh75 said:
my bro in law had similar problem, he changed the lift pump coz it was fooked, but problem was still the same,
it turned out to be the fuel sender,
the top pipes corroded but only slightly and it was pulling air in, enough to make it run like crap and pull badly
Click to expand...

right! well for the sake of £25ish think im going to change the lift pump and fingers crossed......... and if not- besides burning the bloody thing il give the hoses/fuel system another check seems to be endless number of things on these discos that all can and have caused the same running issues:(
 
hmm looks like i have it BAD no fuel at the filter and no resistance on my lift pump primer just koncked going up a hill the AA were there usual hopeless and down rite hopeless selfs 4 1/2 hours from first call till i got home some 3 miles away a new record of incompitance ! the aa said my lift pumps goosed and thats all there monkey wanted to do 5 mins for him to tell me what id already guessed hmm money well squandered least they brought my disco home after much time wasted!
 
You must log in or register to reply here.

Similar threads

moorsman61
Fuel or lack of it
Replies
6
Views
941
moorsman61
moorsman61
Maat
Disco 1 300tdi diesel leak
Replies
11
Views
459
Maat
Maat
M
1992 200tdi 90 High Reving Engine on Start Up🤔
Replies
9
Views
563
kevstar
kevstar
pocketrocket
Disco 300tdi sluggish power
Replies
5
Views
945
pocketrocket
pocketrocket
DefendingLancashire
300TDI Four-parter: brake wear, lift pump / fuel filter, turbo, and bushes / squeaking
Replies
13
Views
613
miktdish
miktdish
Back
Top