cuts out

[marky-boy]

hello can you help ive just bought a p reg 300tdi disco its takes its time to start up and a few times now i pull up to lights(etc) and it cuts out and wont start it takes 4 or 5 goes to get it started and what should the idle revs be if anyone can help it would be grate thanks

[kevinrbeech]

Idle revs about 900, I think.

Stalling could be sucking air into the pipe anywhere from the tank forwards, could be the lift pump also.

I would try the simple things, like that first.
Kevin.

[marky-boy]

thanks someone also said it could be the fuel filter so im trying that now

[marky-boy]

tryed the fuel filter no diffren have had a look atthe lines they seem ok aint to sure how to fined out if its the life pump

[marky-boy]

also when i rev it and let off the pedal it drops in revs then dies

[abyssdj]

id guess that its something stopping it from getting fuel properly when you rev it... are the air intakes ok too?

[marky-boy]

i have fitted a new air filter it seemed ok for about 5 min but it started doing it again and havent got a clue what eles to try

[marky-boy]

its got worse has anyone had problems like this before im out of idears now

[Disco69]

Does the vehicle drive ok when its running?
Do you get any smoke from the exhaust? if so what colour and how much?

Are there any leaks at all from the fuel system?

Does the engine lose any water fromthe cooling system?

[marky-boy]

hi ya yes when im driveing along its fine no smoke as i can see no leaks and not leaking water but when i take the fuel filter off its only 1/4 full

[marky-boy]

also if i undo the breather cap in top of the filter it takes a wile befor the fuel comes out i do it up and it runs ok for about 2 mins

[Underdog]

Have you checked the fuel pipe connections to the top of the tank???? You access these via the inspection panel in the boot floor. They are particularly prone to corroding and will draw air into the system. Take a look and give them a good liberal coating of grease and see if this helps.;)

[marky-boy]

i have had a look at the pipes they was a bit rusty so i coated them up still running like a dog fitted a new fuel pump lifter still not right so its going to a 4x4 center in the morning cos im out of idears i let you no the out come thanks for all your help :)

[marky-boy]

they said it was injectors so i paid them to have the cleaned and still no luck now they are saying its the fuel pump

[reedrider]

Sounds like the local 4x4 centre are guessing as well
It got to be air getting sucked in somewhere try the fuel lines from the tank forward have you emptied the water trap ?
Its located in front of the rear axle on the drivers side
You could try taking the sender unit out to se if the pick up pipe is blocked with debri in the tank
All of these are cheaper than gettibg the fuel pump changed
Hope some of this might help

[Underdog]

Sounds like the local 4x4 centre are guessing as well

Sounds as though everybody is guessing!!!!:rolleyes:

I think that Kev Beech may have hit the nail on the head with his response to your initial request. This is a guess also but I think you only need two words to possibly sort this one out. Lift Pump.;)

A friend of mine had a mare with his motor and had symptoms exactly the same as yourself, rough idle, poor starting, cranking over and over and over before it would fire, cutting out at traffic lights etc. etc. etc. etc. He was convinced it was air in the system too!!!!!!
A new lift pump and the problem was sorted.

Another tip: Brim the tank with fuel. The extra weight causes more back pressure to act on the lift pump and resolves the problem until the tank is low enough for the lift pump to "breath" ;) . Give this a go...............you've tried almost everything else.;)

[marky-boy]

thanks i will try the sender unit i have let the water out already i dont realy want to buy a pump yet as the are a lot dosh just incase it aint that

[marky-boy]

i have got a new lift pump on it and its still no good

[marky-boy]

hi all it aint the pump is the the sediment bowl is it ment to be a sealed unit because mine has got a hole in the top part which bolts to the body

[marky-boy]

well after a new sediment bowl its all working fine now