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Paj won't start after high pressure fuel pump been fitted


 
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Pajasho
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Age: 33
Zodiac: Capricorn
Joined: 05 Nov 2021
Posts: 35
Location: Chesterfield

PostPosted: Fri Nov 05, 2021 3:39    Post subject: Paj won't start after high pressure fuel pump been fitted Reply with quote

Hi all, Im having problems with my mk 2 2.5L paj. So after finding I had a leaking high pressure fuel pump I thought I had found where it was leaking from and replaced an o ring but this didn't work, then figured out that it was actually leaking from the gasket so I brought a second hand fuel pump from a breakers (6 month warranty. They said all cars are ran for an hour to ensure all parts sold work fine). Once installed I then learned that it needed priming and didn't realise the white cap on the side on the fuel filter was the primer so I went and got a primer bulb, cut the pipe that feeds the fuel from the filter to the pump and installed it there. Got it primed and cranked the engine so fuel was being pump out of the lines that meet the injectors. Tried to start the truck and it started for about 3 seconds then cut out. So after, I thought it may be the fact that the pump needs fine tuning and after around several hours of tilting the pump, still nothing so I'm wondering if something else may be the problem. Could it be the issue that the primer seems to be able to keep pushing fuel through for around 5 pumps after cranking the engine? I've tried loosening the nuts on the lines to the injectors and it seems to be coming out nice. Also I've checked all around the pump, lines and hoses and can't see any leaks. Been on this for nearly 2 weeks now and I feel so close to completing this ball ache of a job but lack the mechanical knowledge so I'm chuffed with how far I've got but can't seem to figure out what to do next. Any help would be greatly appreciated. Thanks, Ash
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