I guess I'll start at the top. When I start the truck, the accelerator works excellent, I floor it, it goes! When the truck warms up, it shuts off when down shifting, or coming to a stop. Starts right back up as if there is no problem, but then, when you give it some fuel, you can honestly floor it and probably count to 3 before it even attempts to move. I also realized that if you rev it, and flutter the accelerator while at high rpms, it has excellent response. Also, if you are driving at a constant speed, and decide to floor it, there is a large delay there as well. I am not sure if I have trash in my lines, or what. I also had a leak on the fuel return line, and it has been repaired, got all air out of the lines, and problem is not fixed. PLEASE HELP!!
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Re: 85 F-250 diesel (6.9) fuel problem 4spd 2wd
First, double check that all the air is out of the lines, there may have been a stray bubble that got missed the first time. If that doesn't do it pick up Haynes Diesel Engine Repair Manual, Part # 10330 at your auto parts store. It lists a few potential problems and solutions for this . It also covers your specific engine in good detail, well worth the roughly $20 it costs.
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Do you have any check engine lights on? Most diesels have a safety feature that shuts down the engine and puts it in "limp mode" when there is a problem somewhere . It will stay in limp mode till repaired and the code cleared. You should get a code with a diagnostic.
Hey, I've got an R reg vito and they're all the bloody same. They're fitted with a "self priming pump" and i've used the quotation marks because they never bloody work! I've ran out of diesel in mine a few times due to a broken guage and it's always the same, depress pedal and for 30 second intervals crank the motor and depress the accelerator halfway. After an hour, multiple stalls and a flat battery it may choose to start. If you run out on a hill, forget it. The last time I ran out before I got pissed off and fixed the fuel guage I did just that and a handy hint if you're stuck on a hill in a vito and out of fuel is to always carry a posi drive screwdriver in your van. If you can bear the taste of diesel, unscrew the rubber hose on the clear fuel line that runs into the fuel filter on the left hand side and ****. The pipe's fitted with a n/r valve so once you taste diesel, reconnect it and crank for a bit and it'll start. If you happen to be really organised, keep a can of brake and clutch cleaner spray in your van and spray into the air intake in small bursts and it'll fire up in a second. The latter mentioned product is a must to have and works ten times better than any can of easy start. Finally when you have time I'd recommend doing what I did and fitting an inline hand primer pump to the clear fuel line which i've tested and removes the need for all of the above messing around. The simple fact is, the vitos self primer is s**t and cannot be relied upon so if you're like me and like to play petrol station poker, a £3.99 ball pump is a must.
This is very important for Audi 1.9 TDI engine: IT IS FORBIDDEN TO RUN WITHOUT DIESEL FUEL IN RESERVOIR !!!
This type of engine is equipped with pump-nozzle injectors which develop up to 2050 bar injection pressure !
Remove the fuel filter, fill up with diesel fuel and put in place. After that try to start the engine with accelerator pedal to the floor. Heed of electric starter motor temperature and battery status! After 40 - 50 sec. of start attempting wait for 1 - 2 minutes for battery and electric starter motor revival. After few starting attemptions the engine must start.
Chances are your TBI injector is dirty, sticking, failing or the "blue" wire to the injector has rubbed through and is intermittently touching ground and holding the injector open.
Pressing the accelerator to the floor will cause the ECM to go into a "clear flood" condition, it will not send a fuel pulse to the injector and hold it closed.
Remove the injector and clean it out, not very difficult, you can use carburetor cleaner. Trace the blue wire back as far as you can and put some added tape over anything that looks like it may be a rub-through problem and I believe you will be good to go.
Don't forget to change the fuel filter once in a while, slightly clogged fuel filters will shorten the life of your tank mounted fuel pump.