Good evening all. I have a trusty 1800 D P reg Escort Van fitted with a CAV type pump and is a non turbo. I have been running it every day with no problems for ages when a strange fault has started, It will not start it it is facing up hill, no way in the world will not have it.So to get over this i park it downhill, even when warm. So this to means the fuel must be getting back to the tank some how. What happens even when facing down hill now is it will start but will run for a few seconds then cut out. So i checked the fuel filter primer and the filter has no fuel in it. Re pump the primer then it will start and will run high on the revs for ages then calm down then run high again. Have replaced the following, Fuel cut off solonoid, Fuel Filter, Fuel filter housing, Air filter and pre pump fuel lines. Still with fault. AGHHHHHH!! So think it must be the all expensive pump. Remeber though when its facing down hill it runs sweet most of the time but just revs high now and again. Strange fault! I know my RS Turbos not diesels so i am now stuck any help would be great with this as i have just had the van sign written and re painted so will be gutted to have to spend another 500 quid on it!!

 

take the filler cap off and try it see if there's a difference!

 

It's not the pump, most likely an air leak allowing fuel to drain back/of out, look at the seal on the bottom of the through bolt that passes up the centre of the filter, also shove a pint of hydraulic oil into fuel tank and it will dry up any moisture, if there is too much moisture this will aggravate the problem, that is why they have a water drain tap on the bottom of the filter housing.
tabetha

 

loosen of the pipes on the injectors and try pumping the fuel through, sounds very much like its letting air through somewhere.

 

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