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2001 GMC Jimmy High oil pressure

Tiny
JWALSH3124
  • MEMBER
  • 2001 GMC JIMMY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 92,000 MILES
2001 GMC JIMMY 4.3l
My jimmy has high oil pressure which in return keeps blowing the seal on the oil filter I figured it was a clog so I used engine flush and while doing the flush it brought the pressure back down to 40psi so I then drained and filled it with oil and new filter and same thing happened I have repeated this procedure 3 time and it still is blowing the seal. I also have removed and flushed all oil line up to the block any Ideas on what is going on?
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Sunday, March 28th, 2010 AT 9:35 AM

5 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Try changing the pcv valve and let me know what happens, because the pcv valve is the only way to vent the crankcase, so if it is plugged, guess what? I think you know, so try that and get back to me. Thanx
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Sunday, March 28th, 2010 AT 11:16 AM
Tiny
JWALSH3124
  • MEMBER
  • 4 POSTS
I did that and still no change
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Friday, April 2nd, 2010 AT 4:40 AM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Then this looks like a oil pump problem.
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Friday, April 2nd, 2010 AT 9:27 AM
Tiny
JWALSH3124
  • MEMBER
  • 4 POSTS
It was a clogged oil channel right as it re enters the block
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Monday, April 5th, 2010 AT 2:41 AM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Awesome, so the vehicle is fixed?
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Monday, April 5th, 2010 AT 8:32 AM

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