I have a bus on a 1994 Ford F350 chassis. It's a 7.3 L non turbo. It runs great, but I think it's time to change the fuel filter(s). How do i change the fuel filters without bleeding the system?
Re: how do i change the fuel filters without bleeding
You cannot change filter without bleeding it you can however fill the fuel filter with injector cleaner that can be put into filter and NOT into the fuel tank this will help also u can get a external primer pump and attach to the OUT side of filter and pump the fuel through good luck
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WELL LACK OF POWER NOT REACHING TOP SPEED.YOU COULD HAVE OBSTRUCTED EXHAUST.CLOGGED FUEL FILTER.DEFECTIVE FUEL INJECTION PUMP OR INJECTION PUMP TIMING OFF.DEFECTIVE TURBOCHARGER OR WASTEGATE.
yes, on engine.base part #9155, Item #40, big round thing in picture
SECTION 303-04C: Fuel Charging and Controls — 7.3L Diesel
2000 F-Super Duty/Excursion/Motorhome Chassis Workshop Manual
DESCRIPTION AND OPERATION
Fuel Charging And Controls
Fuel System
The fuel system used on the 7.3L direct injection (DI) turbo diesel engine is controlled by the powertrain control module (PCM) (12A650).
The fuel system components consist of:
Diesel Engines
The 6.9L and 7.3L diesel engines use a one-piece spin-on fuel filter. Do not add fuel to the new fuel filter. Allow the engine to draw fuel through the filter.
Remove the spin-on filter by unscrewing it counterclockwise with your hands or a strap wrench.
Clean the filter mounting surface.
Coat the gasket or the replacement filter with clean diesel fuel. This helps ensure a good seal.
Tighten the filter by hand until the gasket touches the filter mounting surface.
Tighten the filter an additional 1⁄2 turn.
NOTE: After changing the fuel filter, the engine will purge the trapped air as it runs. The engine may run roughly and smoke excessively until the air is cleared from the system.
i dont know about the turbo going bad,but i do know that ive seen 7.3 diesel have bad injectors,usually 2 at a time, check for fuel at the injector which can get messy so wear protective gear such as goggles and gloves,while running crack open the fuel line at the injector to see if there is fuel,it should run rough which is good on the working cylinders,if it doesnt change then maybe a bad injector,or not enough fuel pressure at that injector.injection pump issues are another thing,but most likely its an injector.
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