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What to do about excessive return in a Ford PowerStroke?

What to do about excessive return in a Ford PowerStroke?

Check the injectors for excessive return. Remove the return rails and plug the rails with a suitable tool, then crank the engine while watching the injector returns. A small amount of return is normal, but more than 3 ml in 15 seconds while cranking or at idle is considered excessive.

Can a poor fuel pressure regulator cause a Ford to stall?

A poor fuel pressure regulator can also cause your Ford to stall while idling or driving. While it will most likely occur while idling, it is not unheard of for the car to stall while you are driving down the road.

What causes crankcase overfull on Ford diesel engine?

Crankcase overfull (fuel dilution) can cause a rough run and balance rates out of specification. Inspect for an intermittent Fuel Rail Pressure sensor signal by wiggling the harness between the sensor and the ECM with the ignition ON and the engine OFF, while monitoring the parameter with a scan tool.

Can a faulty fuel pump cause poor mileage?

Poor Mileage. A faulty fuel pressure regulator can also be to blame for a sudden decrease in fuel mileage. Alternatives. These symptoms can also occur with a plugged fuel filter, failing fuel pump, or faulty PCM. In the event you have these symptoms, it is best to have the entire fuel system inspected by a qualified Ford fuel system technician.

What causes loss of power in Ford PowerStroke?

And it doesn’t have to be a huge leak either although the bigger the leaks, the more noticeable it becomes. If you are losing a percentage of your exhaust pressure before it gets a chance to spin the turbo from leaking up pipes, you WILL see lower boost number, loss of performance etc.

Poor Mileage. A faulty fuel pressure regulator can also be to blame for a sudden decrease in fuel mileage. Alternatives. These symptoms can also occur with a plugged fuel filter, failing fuel pump, or faulty PCM. In the event you have these symptoms, it is best to have the entire fuel system inspected by a qualified Ford fuel system technician.

A poor fuel pressure regulator can also cause your Ford to stall while idling or driving. While it will most likely occur while idling, it is not unheard of for the car to stall while you are driving down the road.

Why did my fuel economy drop after installing lockouts?

While this is true, (just did the timing set and phasers on an ’05), the tiny orifice in the phaser, (they operate on oil pressure), can clog on its own from the tiniest amount buildup or contamination. I noticed about a half mpg dropoff in fuel economy after installing the lockouts.

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Ruth Doyle