Dpas1973

Member
Ok so I purchased a used injection pump for my 2.5na I used the lock up tool so I didn’t have to take front of motor apart. I set the pump bled the filter and the little screw on top of pump crack it and nothing to the injectors. I looked in the inspection plate and the pump pulley is turning when I crank but 0 fuel to the injectors. I have 10 gallons of fuel in my driveway from bleeding it over and over. Safe to say I got a bad used pump?
 
Sounds like it. When I refurbished mine I never removed any screws from the injection pump, I just pumped fuel through till it came out the top of the injectors return fitting and it fired up fine. Either I was lucky or yours has a problem.
 
Verified if the fuel stop isn't stuck in the closed position? Fuel will flow through the pump body to return as long as it's been pumped in, doesn't necessarily mean some of it is getting into the head of the pump to be pushed out to the injectors.
 
Verified if the fuel stop isn't stuck in the closed position? Fuel will flow through the pump body to return as long as it's been pumped in, doesn't necessarily mean some of it is getting into the head of the pump to be pushed out to the injectors.
How would I check if it’s stuck in the closed position?
 
If the injection pump for the 2.5NA is anything like the one on the 200Tdi, you should have an electric solenoid sitting on top of the pump head (the cast iron part the injection lines go out of).
When you remove that solenoid, there's a spring loaded plunger sitting underneath.
Remove that plunger with the spring, replace the solenoid and start up the engine.
If it runs, you have a duff solenoid and you should be back in business with a replacement.
 
If the injection pump for the 2.5NA is anything like the one on the 200Tdi, you should have an electric solenoid sitting on top of the pump head (the cast iron part the injection lines go out of).
When you remove that solenoid, there's a spring loaded plunger sitting underneath.
Remove that plunger with the spring, replace the solenoid and start up the engine.
If it runs, you have a duff solenoid and you should be back in business with a replacement.
Did that already nothing.
 

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