Fuel Delivery Problem
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Joined: Feb 2008
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From: Wichita, Kansas
Fuel Delivery Problem
Hi Folks,
I have a 2000 F250 SD 7.3L PS LWB with 265,000 miles on it. I began to notice in the last 4 months that when my fuel level reaches one eighth of a tank or about six gallons left in the thirty eight gallon tank, I begin to lose power along with a lean sounding cackle. I replaced the frame rail pump and drove it yesterday until it was down to the one eighth tank when the problem reappeared. Is there somewhere in the fuel pickup/sending unit assembly that I could be drawing air from? After refilling the tank and a few seconds of running the engine returns to running normally. Does the pickup have a strainer screen that could be becoming plugged?
I have a 2000 F250 SD 7.3L PS LWB with 265,000 miles on it. I began to notice in the last 4 months that when my fuel level reaches one eighth of a tank or about six gallons left in the thirty eight gallon tank, I begin to lose power along with a lean sounding cackle. I replaced the frame rail pump and drove it yesterday until it was down to the one eighth tank when the problem reappeared. Is there somewhere in the fuel pickup/sending unit assembly that I could be drawing air from? After refilling the tank and a few seconds of running the engine returns to running normally. Does the pickup have a strainer screen that could be becoming plugged?
Thread Starter
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New User
Joined: Feb 2008
Posts: 5
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From: Wichita, Kansas
I was able to put 31.75 U.S. gallons into the 38 gallon tank when I refueled yesterday, gauge at 1/8 and no low fuel light. Now that was topped off to the top of the filler neck which involves continuing to throttle the fuel into the tank over a five minute period due to the flawed tank venting design.
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New User
Joined: Feb 2008
Posts: 5
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From: Wichita, Kansas
Thanks for the reply. I have not analyzed how the sending unit is assembled but that sounds like the probable cause if that is the way it is built. I was beginning to wonder if a fitting between the boost pump and the tank had a seal that was aging and allowing air to be pulled into the line when the level became low enough to make an increase in the vacuum required to draw fuel from the tank reach a certain point. I will pull the tank when it gets near the one-eighth level again.
Where did you find your horn? I drive fifteen miles each way to work and have a great number of drivers that never learned their left from their right!
Where did you find your horn? I drive fifteen miles each way to work and have a great number of drivers that never learned their left from their right!
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