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2000 Ford Explorer Drops to 28psi oil pressure at idle

Tiny
JSCHMIT
  • MEMBER
  • 2000 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 25,000 MILES
My wifes explorer drops to 28psi of oil pressure at idle, the guage on the dash kept dropping so I put on a mechanical guage and it was 28psi at idle and 51psi at 2100 rpm. The engine has only 30000 it was I remaned we put in 3 years ago I was going to replace oil pump but was wanting some other advice first. It is the 4.0 OHV engine. Thanks
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Sunday, September 5th, 2010 AT 9:50 AM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Pressure spec is 40-60 psi at 2000 rpm normal operating temp, so it's OK. Change sending unit.
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Sunday, September 5th, 2010 AT 9:57 AM
Tiny
JSCHMIT
  • MEMBER
  • 11 POSTS
I am sorry I forgot to say that I have changed the sending unit 4 times and with in 4 city blocks it blowes oil threw it (not sure if that is normal) that is why I checked the pressure I thought it was high
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Sunday, September 5th, 2010 AT 1:00 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Are you using the recommended oil listed on the fill cap?
When you say "blows through" do you mean it's leaking?
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Sunday, September 5th, 2010 AT 9:11 PM

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