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Strange Fuel Issue

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Old Nov 1, 2006 | 03:00 PM
  #1  
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gtyamaha
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Strange Fuel Issue

I have an '88 F-150 300 I-6 with dual tanks. I fill up both, I use front tank first, then switch to rear when it gets less than 1/4 tank(roughly 175-200 miles). Once the tripometer reaches right around 200, the truck starts sputtering like its out of gas. I give it more throttle and it keeps up, but if I drop off the gas, it dies. Now, if the rear tank is full why is it doing this?

I thought at first it was debris in the rear tank, so I put in some gas additive(forget the name, red bottle, not redline??). Filled up again, I put 19.4 gallons in the 19 gallon front tank. Not sure how that works. Went 200 miles again and it sputtered, so i filled up the front tank.

Is it possible that the fuel pump on the rear is not working and it continues to pull from the front tank even when the rear is selected?

Thanks for any help.
 
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Old Nov 1, 2006 | 03:21 PM
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subford
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From: Easton,Ks
Originally Posted by gtyamaha
Is it possible that the fuel pump on the rear is not working and it continues to pull from the front tank even when the rear is selected?
Yes, if the rear tank pump is not working it will pull from the front tank but the gauge will read from the rear.
 
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Old Nov 1, 2006 | 07:01 PM
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any idea how i could put more than 19 gallons in a 19 gallon tank?
 
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Old Nov 1, 2006 | 09:12 PM
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well, you tank's capacity is not an exact measurement, for one. and it can fill the filler neck partially
 
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Old Nov 1, 2006 | 09:47 PM
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so in other words the front tank was really empty.
 
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Old Nov 2, 2006 | 07:37 PM
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I believe Ford had a recall a few years ago for a tank selector switch failure? Mine (90, F-250) would pump from one tank to the other when switched one way and not pick up when switched the other. I contacted the Ford dealer and they replaced it under warrantee. You might check that out.
 
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