Lift pump maybe? Advice needed.

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Brian S

Well-Known Member
Posts
2,886
Location
Braintree, Essex
Hello.

First off for all the regulars I have tried a search but am sitting in my cold broken down landy waiting for the AA and using my phone which is crap for trying to search. It just won't work.

My problem is that last night a group of us went out green laning and the last lane we did had a very deep long puddle.

Mine is standard and I should have backed out the half mile to avoid it but I went on and got stuck with the passenger side in the hole and the water up to the air intake pipe.

The inevitable happened and the truck engine died.

After some effort I got pulled back out but the engine would not start.

Connected jump leads to it and no go. I did remove the very soggy paper filter at some point.

Was dark and we had no proper tools or will at 2am so left it outside some houses.

This morning I put another battery on and cranked it but it would not go.

I removed one of the injector pipes and turned her over and there was just the odd tiny spit of fuel.

I replaced that and undid the bleed valve on the filter housing and pumped the lift pump. Nothing came out and the lever seemed to have no resistance. I blipped the engine over a few times to move the cam lobe and the lever was still the same.

I undid the drain on the bottom of the filter and rather than pour out as usual it dribbled fuel.

Does this sound like my lift pump broken and why would it just give up like that?

Thanks for looking.

Will be on here a while waiting for recovery.
 
lift pump sounds knackered they will often run well with broken lift pump until you disturb fuel supply, remove intercooler hoses to make sure no water present in intake side try lift pump with engine cranking as lever on outside often break but pump still pumps, check it hasnt sucked distrubed crap of bottom of tank
 
Cheers. Will do that. It has half a tank of BP's finest diesel but the truck was shaken about a lot last night.

I did crank the engine over and very little fuel came out.

Will remove the pump when I get home. Any way to test it off the engine?
 
Unless you've dammaged a fuel line whilst bouncing around the country side in which case even if the lift pump is workin it won't pull any fuel through.
 
Seems like it may be a fuel line.

Changed the lift pump today, old one seemed the same as new. When fitted I could not see any pressure on the lever and no fuel pumping through, even when cranking it over.

Checked under the cover in boot floor and apart from being covered in wet mud looked fine when I cleaned it off, rusty but no holes.

It was too wet and dark and truck is on road not my drive so did not crawl under tonight.

Had a look at the sediment catch tank from wheel arch but it's all caked in mud.

Will get a hose on it all at the weekend. I recon there must be a broken fuel line.
 
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