Fuel filter causes pump to fail?
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From: Colville, Washington
Fuel filter causes pump to fail?
My parents have a '98 F150,4.6l,4x4,at,fairly plain jane truck. They have not changed fuel filter since purchase and don't know if it has been changed before. A friend said if the filter hasn't been changed and it has lots of miles it can cause the pump to quit after the filter r&r. I've never heard such a thing and wondered if there was an issue? Thanks for any comments!
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From: Southern USA
never heard of this. but what does happen is that by not replacing it (the filter), gradually puts a little extra load , or resistance on the little pump motor, due of course by debris and a black super fine "dust" that comes from the carbon brushes. I replaced the wives '97 g.marquis filter at around 50-60k and i couldnt' believe the black resdiue after letting the gas from the filter drain into a clear glass jar. it was black as black gets. these little motors are cooled by the gas flowing thru the motor. the pump module is quite expensive, even aftermarket, and the instructions will say "you must install a new filter". they do this because of a partially clogged filter may cause premature pump failure. I ran my '91 out of gas in rear tank, just to see how far the gage would go. then it went out shortly afterwards. (prob. overheated) my 2c worth.
01' f150 sport
'91 lariat , mint, just turned 100k
'97 g. Marquis
'03 "toy"ota corolla
'53 2 door
01' f150 sport
'91 lariat , mint, just turned 100k
'97 g. Marquis
'03 "toy"ota corolla
'53 2 door
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Posting Guru
Joined: Jul 2003
Posts: 2,232
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From: Colville, Washington
Thanks Paul. I was aware of the extra load imposed by the "old" filter. It would seem that the reduced restriction, of the new filter, would let the pump run cooler and easier and not cause it to fail.
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