gas tank help

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Dec 9, 2010 | 12:23 PM

conan1rice

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Joined: Oct 2010

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gas tank help

So ive got a 89 f150. 302 AOD 4X4 Dual tanks. My gas gauge hasn't worked since i got the truck. It usually says super fool. but today it started giving a reading, but it was bouncing around weird and acting weird. Ive been thinking it was 2 bad sending units. But it is doing the bouncing on both tanks. So i dont think both sending units would do that at once. i dont know. an anyone help?? it seems like it did it when the tank gets low. thanks

Dec 11, 2010 | 11:01 AM

jplinville

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Joined: Oct 2009

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From: Ohio

sounds like a short in the wiring...

Dec 11, 2010 | 01:18 PM

imabaka

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Joined: Jul 2009

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From: North Platte NE

When I got my 88 it had both sending units bad. Both read super full. One pump went out a few days later I replaced both senders/pumps and all is well.

Dec 11, 2010 | 01:42 PM

95f2504x4

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Joined: Dec 2010

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From: Middle of nowhere, Mo

same on my 89 but they read empty then started reading like yours are all jumpy and what not then one went out so i replaced the one and shortly after the other went out so now both read perfect and no problems since so it might be both units

Dec 16, 2010 | 09:59 PM

carino

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Replacing the "sending units" is it hard to do?

Dec 16, 2010 | 10:12 PM

95f2504x4

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Joined: Dec 2010

Posts: 203

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From: Middle of nowhere, Mo

not really just like 4 bolts to drop the tank. Then when you drop it all you have to do is take the ring off and the pump out and replace it. try to make sure the takes empty or close otherwise it might be a little heavy lol