03' F250 Powerstroke 6.0 - Fuel filter?
#16
10-25-2013, 11:26 AM
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INJECTOR BUBBLE TEST
6.0lit Powerstroke Fuel System Tests - YouTube
Remove the FICM relay and the fuel pump relay
Remove the upper fuel filter cap and the upper fuel filter
Crank engine and check for bubbles with a level of fuel in the filter bowl
If you see bubbles, remove the fuel inlet line to the passenger head (right side) and test by cranking again.
If the bubbles go away, the issue is an injector (or injectors) on the passenger side, if the bubbles remain, then the issue is on the drivers side
Reconnect the fuel line to the passenger head and proceed with removing glow plugs (one at a time) on the appropriate side to isolate the leak
Compression leak into the fuel can come from: Bad copper sealing washer, bad injector cup, insufficient torque on the injector hold down
6.0lit Powerstroke Fuel System Tests - YouTube
Remove the FICM relay and the fuel pump relay
Remove the upper fuel filter cap and the upper fuel filter
Crank engine and check for bubbles with a level of fuel in the filter bowl
If you see bubbles, remove the fuel inlet line to the passenger head (right side) and test by cranking again.
If the bubbles go away, the issue is an injector (or injectors) on the passenger side, if the bubbles remain, then the issue is on the drivers side
Reconnect the fuel line to the passenger head and proceed with removing glow plugs (one at a time) on the appropriate side to isolate the leak
Compression leak into the fuel can come from: Bad copper sealing washer, bad injector cup, insufficient torque on the injector hold down
It runs fine so thats got me scratching my head.
#17
10-25-2013, 05:46 PM
Fuel pressure at the regulator (side of secondary house) in the 60-65 psi is normal. Pumped up to 100psi is a good way to over come the o-rings. Are you sure your gauge/sensor is right? I've seen mine show 100 psi...it was a short in the wiring.
#18
10-26-2013, 10:34 AM
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No I'm not sure its right. I need to double check with another guage.
#20
10-26-2013, 02:18 PM
How are you seeing the number? Electronic gauge or a mechanical one? If it's electronic...what brand/model do you know? I'm not saying you need to stop driving the truck...but you need to figure out SOON if that pressure is right or not. If that's actual fuel pressure you could have fuel getting into the oil. Think of it this way...fuel pressure for your truck is no different than your blood pressure; it needs to be in a certain range for a prolonged happy life. High fuel pressure is just as dangerous as low fuel pressure.
#21
10-26-2013, 10:44 PM
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How are you seeing the number? Electronic gauge or a mechanical one? If it's electronic...what brand/model do you know? I'm not saying you need to stop driving the truck...but you need to figure out SOON if that pressure is right or not. If that's actual fuel pressure you could have fuel getting into the oil. Think of it this way...fuel pressure for your truck is no different than your blood pressure; it needs to be in a certain range for a prolonged happy life. High fuel pressure is just as dangerous as low fuel pressure.
The high pressure isn't that critical actually. 7.3s see spikes as high as 110 often and in fact they are all over the board on pressure. These O rings can hold 100 PSI all day as well as the copper ring. Fact is 99% of diesel owners dont know what their fuel pressure is.
However, I dont want to run it that high simply because its not normal but I think its a faulty sending unit. I have a new one and I will put it on in the morning and see if that is the issue. I hope it is.
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