Oil Pressure Switch
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Joined: Apr 2006
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From: Mifflintown Pa
Oil Pressure Switch
I Bought a New Oil Pressure Switch To Put In My 1997 Ford F-150, 4.2 Liter V6. Where Do I Find It? I Was Told It Was Above The Oil Filter. Anyone Help Me Out With This?
I'll Tell Ya What Is Happening, Once My Truck Is Running For An Exteneded Period of Time, I Stop At A Stop Sign or Red Light Or Whenever I Come To A Stop, My Oil Pressure Guage Drops Low and The Oil Light Comes On. If I Put It In Park Then It Goes Back To Normal Or If I Put It In Neutral and Give It Some Gas It Goes Back Up. I Was Told It Was The Oil Pressure Switch. Does That Sound Right?
I'll Tell Ya What Is Happening, Once My Truck Is Running For An Exteneded Period of Time, I Stop At A Stop Sign or Red Light Or Whenever I Come To A Stop, My Oil Pressure Guage Drops Low and The Oil Light Comes On. If I Put It In Park Then It Goes Back To Normal Or If I Put It In Neutral and Give It Some Gas It Goes Back Up. I Was Told It Was The Oil Pressure Switch. Does That Sound Right?
Last edited by backdraft529; Dec 23, 2006 at 01:32 PM.
Lead Driver
Joined: Sep 2006
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I would be a little concerned about the pressure indication clearing at higher engine speeds.
The switch closes with as little as 6 psi. but it maybe faulty.
I would test the real pressure with a mechanical gauge connected to the port the switch came out of to be sure of what you have.
If no or very low pressure then you may lose the engine and should know about this. Should be seeing between 40 and 60 psi at 2500 rpm.
The location is the left front of the engine. I's should be mounted on a special fitting.
The switch closes with as little as 6 psi. but it maybe faulty.
I would test the real pressure with a mechanical gauge connected to the port the switch came out of to be sure of what you have.
If no or very low pressure then you may lose the engine and should know about this. Should be seeing between 40 and 60 psi at 2500 rpm.
The location is the left front of the engine. I's should be mounted on a special fitting.
Senior User
Joined: Mar 2005
Posts: 352
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From: uk
hi, your info was correct the pressure switch is above the oil filter housing. the best thing is to look for a single electric wire that conects to it.
oil pressure loss in this case is caused by the pump loosing pressure as it pumps coolant as well as oil.
look in the 4.2 forum and hydrolocking is the major issue with your year,as mine, engine.
get lower manifold and timing gaskets replaced before the engine distroys its self.
oil pressure loss in this case is caused by the pump loosing pressure as it pumps coolant as well as oil.
look in the 4.2 forum and hydrolocking is the major issue with your year,as mine, engine.
get lower manifold and timing gaskets replaced before the engine distroys its self.
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