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Thunderbird Sc getting high oil pressure.

My 1994 Thunderbird Sc suddenly has high oil pressure. Before it was always reading a little higher than normal, but know is really high. Does anyone know why that is or what causes high pressure. Thanks

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  • connerblk214 May 11, 2009

    Where do i purchase one? I've been to many auto parts stores and the aftermarket one's don't fit. They seem to just slide in place of where you connect them into. They say theres adapters or connectors so they'll fit?

  • yadayada
    yadayada May 11, 2010

    the problem is most likely the oil pressure sending unit, there is a TSB about this false high reading, replace the sender.

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6 Suggested Answers

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Posted on Jan 02, 2017

  • 57 Answers

SOURCE: Audi 80 oil pressure light

i think from memory that the oil pressure switch is at the back of the cylinder head, if its not there it will be located just above the oil filter, these switches are very cheep to buy and can be bought from any good motor factors. You are right to suspect the switch, its the first thing to eliminate before bogging your self down with more complicated and expensive problems.

Posted on May 14, 2008

StormStrikes
  • 104 Answers

SOURCE: oil pressure gauge suddenly reads maximum

Are you referring to the oil pressure gauge on the dash? If so, that is most likely the oil pressure sending unit having gone bad. The sensor runs about $40 - 50 (at least the last time I had to replace one on that engine). They are not terribly difficult to replace and I believe its a three wire sensor located back side of the engine, on the passenger side area. Its in a kind of tight spot and takes a bit to get it completely screwed out, but it can be done.

When they go bad, they typically will cause the gauge on the dash to read maximum oil pressure. You should be okay to run like that until you can get a new sensor as long as it is reading maximum oil pressure on the gauge and not low or no oil pressure on the gauge.

Posted on Jan 04, 2009

  • 82 Answers

SOURCE: Oil Pressure Always Runs High - 2002 Grand Jeep Cherokee

Might be that the oil pressure switch is going out. Unless this has been happening for a while now.

Posted on Jan 07, 2009

localwonder
  • 6784 Answers

SOURCE: High oil pressure reading

Hi, this is a oil pressure sensor malfunction. the gauge is getting a distorted reading from the sensor. replacing the gauge will fix this issue. also, check the fuse box for blown fuses.

Posted on Mar 01, 2009

DAD5bbbbg
  • 111 Answers

SOURCE: 2004 GMC Sierra High Oil Pressure

if it is electrical oil pressure sensor I would start there. The best way to see if you have a major problem is to use a mechanical oil pressure tester. Take off the oil pressure sensor and put the mechanical tester on. The tester should come with a Gage. If it comes within your trucks oil pressure range than all is fine and replace the sending unit and see if that don't help your problem.If the tester runs high then the oil pump is bad or your cam-bearings could be the problem. But with cam-bearings you would usually get a low reading.

Posted on Mar 14, 2009

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