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t444e fuel pump troubleshooting

418 Views 2 Replies 1 Participant Last post by  tanky
truck won't start
fuel filter housing empty
tank has fuel
just noticed fuel pump low pressure inlet hose clamp has backed off somehow and hose is loose
so i assume this is causing no fuel situation
pump is sucking air
i'll have to remove the intake Y to reach it
what happens if i start the motor with the intake disconnected?
will it start?
make funny noises?
bend a valve???
or start driving away cuz the crank relay is an awesome scary thing and the parking brake is broken and i have to pull off the battery cover to reach the master off switch?
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got the y off
tightened up all screwdriver hose clamps
they were ALL a little loose
no reason hose clamp coulda loosened and backed off fuel pump inlet
makes no sense
cept i let someone else install the new pump a while back since it was fueling the crankcase
why do i always pay when i hire a 'professional' ???
all back together
cranking gives me nothing
oil pressure comes up after a while of cranking
truck's been sitting over a year
solo battery is working well, been on the $60 desulphator low amp thingy
filter housing still empty after cranking for a minute
in better light, the stuff at the bottom is RUST STAINS, p o was a p o s
factory manual says crank for 20 seconds to check for fuel pressure
so i think the fuel pump does NOT prime itself and i have to go get diesel
since blowing air in the tank didn't do didly
and i couldn't get the pre filter off since i didn't want to break it
so i still don't even know what the stupid problem is
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i didn't try starting it with the intake off
oh well
but i filled the filter housing and took out the shrader valve holder and turned it over
a little diesel bubbled out but no start
i'm going to assume the pump and lines are o k and figure out why the cylinders aren't getting fuel
time to check the hpop tank
1 - 3 of 3 Posts