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Oil Pressure

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Old Dec 30, 2007 | 04:50 PM
  #1  
bad_habit59's Avatar
bad_habit59
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Oil Pressure

95 f150 5.0 4X4 manual

Got my truck about a year ago and for the first few months when I would start driving the oil pressure gauge needle wouldn't move for the first 5-10 minutes of driving. Then it would pop into the normal range all of a sudden.

The oil pressure needle has never been above the "N" in the word NORMAL, so about 1/4 to 1/3 all the time. Just driving home today it would not come above the low line, not in the red but at the very bottom of the normal range. Its cold and snowy here so I haven't crawled under the truck but I am pretty sure there is no leaking oil.

Any ideas? Oil pressure problem or a faulty oil pressure gauge
 
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Old Dec 30, 2007 | 04:53 PM
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I would say maby its an electrical sending unit? Im not sure if these are manual or electric simply because i havent look. But definatly see whats up with that, maby find where the sending unit screws in somewhere and hook a manual up just to make sure your oil pump and shot.
 
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Old Dec 30, 2007 | 05:34 PM
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check with a mechanical gauge.

the one in your dash is an idiot light in drag.
 
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Old Dec 30, 2007 | 05:45 PM
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how much is a mechanical gauge and how hard is it to do?
 
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Old Dec 30, 2007 | 06:16 PM
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Mechanical guages are less than $20 bucks and aren't real hard to instal.
 
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Old Dec 30, 2007 | 11:33 PM
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thanks for the help guys. I will do that next week
 
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Old Dec 31, 2007 | 11:19 AM
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get yourself a decent gauge..

grab about a 4 or 6" extension with the npt threads on either end..also get a t fitting ..

thread the extension into the block and put he t on that, hook up the factory and your mechanical..dont do the nuts up too tight on the brass crush fitting or itll break and leak (someone could have told me that!) use thread sealer too

and have fun too
 
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Old Dec 31, 2007 | 12:11 PM
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take oil filter off for more working room if you need it.
 
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Old Dec 31, 2007 | 07:22 PM
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Originally Posted by quicklook2
take oil filter off for more working room if you need it.

this i woud highly reccomend..if you dont take it off make sure there are no kids around because the swearing from frustation can flare up
 
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Old Mar 1, 2008 | 01:10 PM
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hey guys, i'm looking at doing this myself now. can someone please post what thread/pipe sizes are involved in putting the T in place? also, is it possible to just replace the stock sender switch with a full analog sender that would just make your stock gauge become more useful?
 
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Old Mar 1, 2008 | 06:26 PM
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EPNCSU2006
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All the fittings are 1/4 NPT. You can put a variable resistance sender in place of the switch, but you will also have to jumper the resistor on the back of the instrument cluster.
 
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