Ford Explorer oil pressure

Tiny
BENNIE S
  • MEMBER
  • 1998 FORD EXPLORER
  • 158,000 MILES
98 4.0 ford explorer oil pressure comes up fine when you start it up then drops all the way out and stops running right a way, what could do this becuse it just started doing it to day?

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Wednesday, October 5th, 2011 AT 9:23 PM

6 Replies

Tiny
JACOBANDNICKOLAS
  • EXPERT
Is there any noise from the engine when the pressure drops? It could be a bad sensor. Let me know.
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Wednesday, October 5th, 2011 AT 9:26 PM
Tiny
BENNIE S
  • MEMBER
No sr oil psi drops and dies with no sound restart oil psi goes up and then drops and dies. Thanks for any help
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Wednesday, October 5th, 2011 AT 9:52 PM
Tiny
BENNIE S
  • MEMBER
No sr oil psi drops and dies with no sound restart oil psi goes up and then drops and dies. Thanks for any help
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Wednesday, October 5th, 2011 AT 10:54 PM
Tiny
JACOBANDNICKOLAS
  • EXPERT
If there is no knocking or ticking from the engine, try replacing the oil sending unit. It sounds like it is bad. If the computer senses no oil pressure, it will shut the engine.
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Thursday, October 6th, 2011 AT 12:11 AM
Tiny
BENNIE S
  • MEMBER
Jacobandnickolas Sr. Think you so much for your help I will do that in the morning and I have replace a o2 bank2 back2 at the same time and ill up date u when im done, and will send a Donation as soon as I get my wheels going again. Thank you again for all your help bro!AAA+
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Thursday, October 6th, 2011 AT 4:22 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
Thank you, but not necessary. If you are concerned that there still may be a problem with oil pressure, this is what I recommend (before replacing the sending unit). When you pick up the parts, ask the parts store if they have a mechanical oil pressure gauge used to check oil pressure. Most places will lend them to you. Take it home, remove the old sending unit and the mechanical gauge will screw directly into the same place the sending unit comes out of. Start the vehicle and watch the gauge to see if it drops. If it does, then there is an internal problem. If it doesn't, most likely the sending unit is bad.

The reason I say the sending unit is because you hear no knocking or ticking from the engine. Very low or no oil pressure would result in a lot of noise from the engine. If you hear knocking or ticking, then shut it down and let me know.

Take care and good luck.
Joe
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Thursday, October 6th, 2011 AT 4:35 AM

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