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Re: 99 ford f250 7.3 diesel leaking fuel from pipe, pipe...
Something seriously wrong here ,,have it checked out by a bosch diesel specialist as i think you have a faulty injector and it over fuelling because the nozzle is broke causing fuel to run into the manifold
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on the exhaust manifold next to the head
one pipe in the centre is the exhaust pipe and the other -rubber hose goes to an intercooler or the inlet manifold
You may have to bleed the fuel system. There may be a very small air leak in the fuel supply line and after a long time idle, the fuel seeps bac into the tank, leaving an air lock in the pipe. When you go to start, this air makes its way into your injection pump & needs to be bled out before the engine will start. Begin from your fuel filter bleed valve, next the injection pump using the primer pump to transfer the fuel. Next loosen off the injector pipes and crank the engine over until fuel sprays form all the joints. Tighten injector pipes and start. It may run a bit rough for to begin with, but will soon even out. If it doesn't start, repeat bleeding of injectors.
Does any one have a idea a friend here has changed ecm, inj, fuel pump checked conector at fire wall ,fuel and has a short wrecker tow f450 99 and will be going down the road and he says the thing just loses all power and kind of just won't do over 15 to 20mph and lets it sit and he says it will do it again. I am not sure how long it takes but since I don't work on diesels I figured I would have the experts that do if anyone knows it's you guys any help he is in Charlotte NC I can put you with this guy he has had it to all the parts changers and no luck Thanks Mark 704 492 1647
Location of the sensor: - in early cars is in the ECU, with vacuum pipe going from intake maniforld duct to the ECU - later models on the air intake duct, with wiring going to the ECU.
The fault may often be caused by:
- air leaks in MAP sensor line to the ECU (early ones only) or any of the vacuum control line hoses. This normally due to perished/loose flexi pipes, etc). - leaks in the air hoses going between turbo/engine/intercooler. Can be spotted by slight oil contamination at the point of leak.
Or it's variable vaine sticking (even intermittently) in the turbo due to contamination, preventing the turbo from performing according to the ECU demand, and hence being 'shut-off' by th ECU
So - check all vacum line for leaks, ensure turbo actuator is free to move, all air hoses are intact and secure, intercooler not leaking.
DIESEL IN THE OIL is most likely from the injectors leaking. the oil in turbo pipe may be from it being thinner with fuel in it i would repair this first
there is a pipe witch runs from the diesel pump to the turbo which monitors pressure. sometimes a thin membrane in the pump goes releasing diesel straight in to the turbo especially on tick over. eventually that diesel is sucked in to the engine along with all the other gunk where it starts revving up on its own rattleing and banging. i have come across this on lucas diesel pumps before
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