F150 OIL PRESSURE FLUCTUATION

1993 Ford F-150

Tiny

totanka09

May, 22, 2010 AT 8:48 PM

Engine Performance problem
1993 Ford F150 V8 Two Wheel Drive Automatic 329K miles

Recently my oil pressure began to drop to extremely low when the motor is warmed up. Have changed the oil and the oil filter and it still does it. It is only after I have driven it long enough for it to be warm, and it only does it at low RPMs. When I give it gas it goes back to normal range.

FOUND 581 RELATED QUESTIONS

3 Answers

Tiny

mhpautos

May, 22, 2010 AT 9:01 PM

Hi there,

I would be checking for a faulty oil pressure relief valve first, start here.

Mark (mhpautos)

Tiny

totanka09

May, 22, 2010 AT 9:56 PM

Hanks. Is that the same thing as the oil pressure sending unit?And where is it located?

Tiny

mhpautos

May, 22, 2010 AT 11:18 PM

Hi there,

No the switch is a pressure sensitive sender that transmits the pressure readings to the gauge, the relief valve is part of the oil pump.

(mark mhpautos)

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