Question about 1981 Ford F 100

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One more question

This may be unrelated to the fuel pump question. When I turn the ignition to the on position, I hear a loud continuious clicking sound. I has always have it since I brought it new. I was told that they thought it was a electronic fuel pump. What do you think? Thanks for your help, Mark

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Hi again,

Appreciate the "Ask Me". With your indulgence, I would be re-posting this in your original problem/post here.

To my understanding a "loud continuous clicking sound" indicates a relay or solenoid opening and closing, whereas an electric fuel pump would produce a low tone whirring sound. This might be of help, image of a typical factory installed mechanical fuel pump:
One more question - e3d12b7.jpg
In the possibility that for some reason your particular model has an electric fuel pump, then it would perhaps look something like this:
f145239.jpg

Posted on Jul 25, 2008

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