I filled up my 2002 7.3 Diesel Saturday at shell ran good for the rest of the weekend. Got in the truck this morning warm up the truck b/c it was cold. Went up the street and l had no power and the engine didn't sound right. So I stopped and then the truck sounded okay but once pushed pedal did the same thing. Fuel pump is running but is whining very high. Could the filters in the fuel line be clogged. Also replaced fuel filter about 2.5 months ago
Kelly; Funny this truck ran good 1 day and not the next. 1 of 3 problems; 1.Injector pump failure, plastic part inside. Notorious failure.
2. Fuel pump failure.
3. When you filled up at the station, you may have got a dose of water in the tank. I would check this first by draining fuel and looking for water. If you find water, more than usual, you may have an insurance claim against station.
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anytime you change the filter in a diesel you have to bleed the air out of the fuel system. The pump won't auto bleed the fuel system for you. every place in the fuel system that has a flare type connection needs to be bleed, start at the connection closest to the tank, loosen the connection and then crank the engine until you see diesel fuel drips from that connection. Tighten the connection while the engine is still cranking. Move to the next connection that is going toward the engine. Continue on in that manner toward the engine until you reach the injector pump/injector. Once you reach the injector pump be VERY aware that the fuel is at VERY high pressure. Do NOT put your body parts in the stream of high pressure diesel fuel. It could kill or injure you! Once you bleed all the way to the injector pump/ injector, the truck SHOULD start. Do not bleed after the injector pump because of the pressure involved, it is WAY too dangerous.
if you have the 6.0 then the filters are located on top on the motor right beside your oil filter and under the drivers side on the fuel pump, check to see if you have diesel in your bowl where the fuel filter is, no diesel in there your fuel pump might be dead, check fuses to fuel pump and check relay on the passengers side kicker panel, check your owners manual
The first thing to do is to start monitoring the coolant level.
This will rule out the possible of headgasket coolant passage pin hole leak.
Headgasket can go at 170,000 miles+
Less if your truck is doing a lot of hauling.
Have you try Amsoil diesel treatment?
It work well for me.
I will ran the tank below 1/4 and fill up on NON
Use Chevon diesel until you get the problem figure out.
Water can come in three way
air condensation in the morning
If you have a schrade valve on the fuel rail, you can turn the key on
and carefully depress the valve to bleed most of the air out of the
system (valve is inside an aluminum or plastic cap similar to those
found on your air conditioning system) You don't have a carb on there
you have a throttle body...you can spray carb cleaner (not either) into
it while cranking and it may help.
Sometimes though, a marginal fuel pump will give up when run dry of
fuel. If pump cannot be heard with key on, check fuse and relay...if
good, pump may have expired. also, make sure filter is able to flow fuel before replacing pump.
red wire is only for the fuel heater.will not cause a no start.try pumping
the primer pump on top of the fuel flter hsg. but first open the bleed
screw,which is black plastic also located on the top.this will eliminate any
trapped air that might have entered the fuel intake system.if the pump does
not get firmer and harder to push, then you have a leak in the fuel supply
lines or the ck valves in the fuel filter hsg or stuck open. Still no start
have it scanned to ck fuel pressure while cranking.it should be close to 5000