1989 Toyota 4Runner oil leak

BACKYARDREPAIRMECHANIC

MEMBER
1989 TOYOTA 4RUNNER
6 CYL
4WD
AUTOMATIC
167,000 MILES

Good Day,
My question is, in the valley below the intake manifold where the knock sensor is located was full of oil. should oil be their , and what would cause this to happen? I'm sending you a picture of this.
Thank you for your time and GOD bless you all in JESUS name a-men!

M.Genzano III

4 Replies

BLUELIGHTNIN6

MECHANIC
16,542 POSTS

Nope, engine oil should definitely not be there. Make certain the PCV lines are connected to valve covers and also check the oil pressure sending unit to make sure oil isn't leaking from there.

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Wednesday, June 30th, 2010 AT 10:34 PM

BACKYARDREPAIRMECHANIC

MEMBER
4 POSTS

Bluelightnin6 Both P.C.V hose are correct. Where is the oil sending unit located , and why would that fill the valley up with oil? What is the unit in the center of the valley in the picture I sent you

do? would that cause the oil leak?

Again thank you for all your time.
M.Genzano III

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Thursday, July 1st, 2010 AT 9:45 AM

BLUELIGHTNIN6

MECHANIC
16,542 POSTS

Should be your oil pressure sending unit and it will leak into valley if it is bad and the seal is leaking on it.

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Thursday, July 1st, 2010 AT 1:30 PM

BACKYARDREPAIRMECHANIC

MEMBER
4 POSTS

BlueLightnin6. Thank you for all your help. I didn't check to see if the sending unit was tight before I asked this question. Hopefully this is the problem.

A