Which oil pressure switch?
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Trailering
Joined: Jan 2025
Posts: 17
Likes: 1
From: Oregon
Which oil pressure switch?
I'm looking to replace the oil pressure switch on my 1995 F150 with a 5.0, but when I look up replacements I either get
This 1995 FORD F 150 Motorcraft E4ZZ9278A Motorcraft Oil Pressure Switches | Summit Racing (I know this one requires an extension in order to fit)
Or this
It seems wherever I got I can't get a firm answer on the difference between these two. I've seen posts about one sensor requiring you to short a resistor in the dash, but then again there's no clarification.
This 1995 FORD F 150 Motorcraft E4ZZ9278A Motorcraft Oil Pressure Switches | Summit Racing (I know this one requires an extension in order to fit)
Or this
It seems wherever I got I can't get a firm answer on the difference between these two. I've seen posts about one sensor requiring you to short a resistor in the dash, but then again there's no clarification.
Cargo Master
Joined: Aug 2021
Posts: 2,261
Likes: 744
From: Maryland
Your truck came stock with the oil pressure switch, like in the Amazon ad. It's an on/off switch, which closes at around 5 PSI and moves the analog oil pressure gauge to somewhere in the "normal" range. Ford did this to reduce customer complaints about low oil pressure.
The motor craft part you posted is an actual sending unit, designed to send a varying signal to the analog oil pressure gauge, and requires a nipple to space it out off the engine block. If you install the motor craft sending unit, you need to modify your dash gauge with a resistor, so it will work with the sending unit.
The motor craft part you posted is an actual sending unit, designed to send a varying signal to the analog oil pressure gauge, and requires a nipple to space it out off the engine block. If you install the motor craft sending unit, you need to modify your dash gauge with a resistor, so it will work with the sending unit.
Thread Starter
|
Trailering
Joined: Jan 2025
Posts: 17
Likes: 1
From: Oregon
Your truck came stock with the oil pressure switch, like in the Amazon ad. It's an on/off switch, which closes at around 5 PSI and moves the analog oil pressure gauge to somewhere in the "normal" range. Ford did this to reduce customer complaints about low oil pressure.
The motor craft part you posted is an actual sending unit, designed to send a varying signal to the analog oil pressure gauge, and requires a nipple to space it out off the engine block. If you install the motor craft sending unit, you need to modify your dash gauge with a resistor, so it will work with the sending unit.
The motor craft part you posted is an actual sending unit, designed to send a varying signal to the analog oil pressure gauge, and requires a nipple to space it out off the engine block. If you install the motor craft sending unit, you need to modify your dash gauge with a resistor, so it will work with the sending unit.
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Irish239
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