5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Wandering Oil pressure gauge

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Old 03-24-2011, 08:02 PM
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ars1
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Default Wandering Oil pressure gauge

The oil pressure gauge in my 94 5.0 wanders. Sometimes it will be in the middle of the gauge and other times it is about the "N" in normal on the gauge. Is there anything I should check? The car doesnt seem to run any different or sound any different when its reading lower.
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Old 03-24-2011, 08:55 PM
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droptop302
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It sounds like the oil pressure switch might be taking a s**T. I would get a new one and at that i would install a mechanical oil pressure gauge.

Last edited by droptop302; 03-24-2011 at 08:57 PM. Reason: STOP ASKING
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Old 03-25-2011, 01:12 PM
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1990boostang
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If it looses pressure when its warm at idle its probably time for a rebuild. That would be bearing clearance issues.
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Old 03-29-2011, 06:30 PM
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ars1
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It does it randomly at either hot or cold temps
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