Question about 1991 Ford F150

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1989 F150 4x4 gas tank leaked (rear tank) had it replaced , ran out of gas today @ half tank register on gauge, also oil pressure gauge fluxauting from normal to o. Is it a bad ground, if so where is the ground for the gauges.

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  • shelton_mcm Dec 30, 2008

    i have a 92 f150 flareside 4x4 and both tank gauges arent reading after replacing both sending units and oil pressure gauge is pegged also, is there a common problem here? all fuses have been checked

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When replacing the fuel tank often mechanics dont check the gauge, it can be damaged when reinstalling it or if it came with the sendor in it already, often they get knocked around in shipping making them read wrong. And in the shop we always check the oil pressure with a live gauge . you can get one at a local parts store pretty cheap, it comes with a new sending unit and all, and the sending unit is the ground, the gauge has a continuous hot and the sending unit applies a amount of ground to allow the needle to climb.

Posted on Jan 15, 2009

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Please rate and god bless:)

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