Petrol Fuel Pump filter

steely dan · Oct 4, 2009

'99 1.8 73 K miles
Did search and found a lot of info on this and it looks like this is the culprit behind the car cutting out after 1/2 an hour or so driving . It has always re started after sitting for a minute or two and then continued until it repeats again. Basic symptoms are like water in fuel. Fuel pump is noticibly louder when running too.
The Haynes manual states that the two rubber " O " rings and the tank seal have to be replaced if new filter is fitted..
Is it neccessary to replace the filter and these also or is it OK to just dismantle filter and clean gauze with cleaner and blow through with an airline? As per this thread
http://www.landyzone.co.uk/lz/f38/freelander-how-clean-your-fuel-pump-52118.html
It'll take me three days to either get a filter sent to me or collected from the closest LR dealer over here in SW Ireland so if the filter assembley can be cleaned without having to replace the two small O rings then It would be a lot quicker and easier for me .
Thanks

steely dan · Oct 5, 2009

Contacted main dealers re these two O rings that Haynes say have to be replaced.
" Don't know what your taking about never seen ,stocked or fitted O rings when changing filters "

Ho Hum.........

steely dan · Oct 17, 2009

Well for info...............
Got the new fuel filter from main dealer recently and when I asked for it the store manager said " never had to replace them , you sure you want it ?"

Removed the pump assembley today and found it absolutley filthy. The pick up gauze ( 2 ) at the base of the pump were totally blocked with a heavy black oily deposit . The old filter had what looked like black oil in it and the casings were coated in crud.
I cleaned all components thoroughly , blew through with air and fitted the new filter which comes with all O rings required, re assembled and refitted .
Worth thinking of doing as it's an easy , but smelly , 60 minute job.

steely dan · Oct 19, 2009

Well , after replacing all as in last post the problem occurred twice again today .
Car starts and runs perfectly but after a while , was up to an hour but now occurring after 10 minutes now, car hesitates while driving and suffers symptoms similar to fuel starvation. If the throttle is pressed the engine just doesn't respond and quickly falters and dies. If it's left for even a minute it starts but as if it has to pump the fuel up from the tank .
It'll run ok and then repeat again.
The tank was clean with no silt or deposits on the bottom .
As I said in previous post the fuel in the old filter when removed was black and filthy could there be a physical blockage in the line or rail ?
The fact that the car always starts after cutting out also leads me to also think that the fuel relay could be cutting out and then resetting when the ignition is switched off and then on again , hence as if it has to re prime / pump the system .
Too dark to look tonight but the Haynes manual states that the fuel relay is in the engine comp fuse box so will check tomorrow.
Incidently downloaded the rave cd tonight onto my laptop and it killed it .
WTF !

steely dan · Oct 19, 2009

Anybody help me out here lads , getting to feel a bit lonely on this thread.............

Chaser · Oct 19, 2009

Don't get lonely sd, it's interesting reading but I have no real experience of petrol freelanders.

do you hear the pump re-priming the system after breakdown as that would indicate to me that the pump had lost it's power from the relay or elsewhere?

also could you (carefully) pump petrol into a container from a disconnected fuel pipe in the engine bay to prove that everything is clear and capable of pumping a high enough volume/flow rate?

steely dan · Oct 19, 2009

Thanks for that Chaser .
Just returned from having it collected and taken to garage after it kept cutting out on her this morning. We live in a very rural area and it was too dangerous to have it staionary on these narrow twisty roads.
Interestingly when it's ticking over the pump noise is rising and falling as if it is struggling to maintain pressure. Another thing that was pointed out was that when the ignition is switched on there is no momenterily illumination of any engine management light. The garage ,whom I trust ,will plug in their diagnostic equipment and see if there is anything showing there.
He is of a mind that the pump is failing . He'll check delivery at rail this afternoon , blow through the fuel line from tank to rail after disconecting to see if it's partially blocked and go from there.
Don

collinca · Oct 19, 2009

I would be interested to hear if the diagnostic equipment shows the problem. We had a similar issue with the freelander losing power and then cutting out every 20 mins or so yesterday, had to pull over a few times and after a minute switched off, it went fine again and then the same problem occurred 20 mins later. The fuel filter is getting cleaned now so it will be interesting to see if that makes a difference.

steely dan · Oct 20, 2009

[quote=collinca;880622]I would be interested to hear if the diagnostic equipment shows the problem. We had a similar issue with the freelander losing power and then cutting out every 20 mins or so yesterday, had to pull over a few times and after a minute switched off, it went fine again and then the same problem occurred 20 mins later. The fuel filter is getting cleaned now so it will be interesting to see if that makes a difference.[/quote]

Sounds very similar . No solution here yet but I'll post as soon as I get some news.

steely dan · Oct 21, 2009

collinca said:
I would be interested to hear if the diagnostic equipment shows the problem. We had a similar issue with the freelander losing power and then cutting out every 20 mins or so yesterday, had to pull over a few times and after a minute switched off, it went fine again and then the same problem occurred 20 mins later. The fuel filter is getting cleaned now so it will be interesting to see if that makes a difference.

Well got it back tonight .

Garage asked me to call in and showed me that when the engine faltered and then died the noise from the pump changed to a higher pitch as if it was struggling to pump .When the ignition was switched off and then on again the pump sounded OK again. The garage tried two diagnostic systems on it and both would not communicate .He had already removed the pump and blew through low pressure air to ensure no sediment was trapped inside and we both cut open the old filter and found it not too bad inside.
So the diagnosis was a faulty pump and /or pressure relief valve.
Only sold complete so we fitted a new LR pump assembley at a whacking cost of 448 .

And that's it, NCT ( MOT ) is due in November which covers it for two years over here ,she'll sail through and then January she's gone for an X Trail...........

Chaser · Oct 21, 2009

I suppose the only consolation after spending that amount is that they got it right, there are so many horror stories of people paying for the garages guesswork.

All that crud blocking the filter could have put the pump under extra load.

steely dan · Oct 22, 2009

I'm certain that's what killed the pump as it was blocked solid and probably had been for years .
Lesson 1 .........Check yours !
Interesting what you say re guesswork by garages. I'm refusing to pay an invoice from a previous garage that I have used for some years after they billed me for work done on a Transit van. 7 hours to replace a EGR valve (plus 180 for the valve )that didn't solve the problem and it turned out to be a blocked fuel filter and the only reason they didn't get away with it was because I was there at the time and witnessed it. I refitted the original EGR and it took me 15 minutes to remove and refit and the van has run perfectly for over three weeks on it. They just assumed that that was the problem and expected me to pay for their guesswork.
The chap I am using now is renowned locally for his honest approach and certainly charged me much less for labour and recovery than I expected and spent some time talking to me to explain the reasons that he felt it was the pump that had failed prior to commiting me to expense.
Ho Hum......

Petrol Fuel Pump filter

steely dan

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