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where is the oil pressure switch on 95 4.9 L

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Old 01-21-2007, 03:24 PM
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Join Date: Jan 2007
Posts: 1
where is the oil pressure switch on 95 4.9 L

Does anyone know where the oil pressure switch is located on a 1995 f150 4.9 L straight six engine?

Thanks in advance....

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Old 01-21-2007, 05:05 PM
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Join Date: Apr 2006
Location: Indiana
Vehicle: 2005 Ford Expedition
Posts: 225
I presume you mean the oil sending unit, which is what drives the oil pressure gauge on your dash?

If so, I know on my old 1985 straight-six it was a bell shaped housing, about 2-1/2in tall by maybe 4in wide (rough estimate) that screwed directly in to the side of the block, about in the middle on the non-intake/exhaust (drivers) side.

Here's some pictures from J.C. Whitney. These are just generic sensors, not necessarily Ford sensors, but they should help you get the idea.

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Old 01-21-2007, 05:46 PM
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Join Date: Nov 2006
Location: Memphis, TN 38135, USA, Earth
Vehicle: 1983 Ford Bronco
Posts: 5,492
All Ford trucks '87-up DO have a pressure "switch" from the factory. Not a sender. '87-96 have a resistor on the back of the instrument cluster that causes the gauge to go to mid-scale any time the pressure is over 6 psi. '97-up have no resistor - the gauge itself is built to show mid-scale when the signal terminal is shorted to ground.

Regardless of switch or sender, the 4.9L block's oil pressure port is where mrainey described: #9 below.

Click the image to open in full size.

The captions of these pics describe how to convert from the newer switch to the older sender. For a straight 6, you don't need the plumbing - just the sender & the jumper wire.

Click the image to open in full size. . Click the image to open in full size.

You might also be interested in adding a LOW FUEL light.
Walk softly & carry a BIG SIX ! ! !

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