High pressure in crankcase

Tiny
DADDYFIF
  • MEMBER
  • 1993 SATURN SL2
  • 4 CYL
  • FWD
  • MANUAL
  • 275,000 MILES
What causes high pressure in crankcase 1993 saturn SL2
Thursday, December 9th, 2010 AT 7:28 PM

8 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
It's usually caused by a lot of blow by in your engine worn ring's. How do you know you have high crank case pressure?Is the vent that goes into air cleaner from your valve cover clear?Is your pcv not all sludged up?
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Thursday, December 9th, 2010 AT 7:34 PM
Tiny
DADDYFIF
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  • 9 POSTS
When the car is running I took off the oil cap it blew off the car does not smoke get great gas mileage
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Thursday, December 9th, 2010 AT 7:55 PM
Tiny
SATURNTECH9
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Are you burning any oil?If so how much in 2,000 mile's?There is no baffling in that valve cover so if there is nothing to stop oil from blowing out without the cap. Is the breather tube that goes from the valve cover to the air cleaner clear and not restricted?
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Thursday, December 9th, 2010 AT 8:04 PM
Tiny
DADDYFIF
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  • 9 POSTS
I change oil and filter about every 3,000 miles or so the breather tube is clear oil is not blowing out the pressure jut seems higher then on my other cars
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Thursday, December 9th, 2010 AT 8:41 PM
Tiny
SATURNTECH9
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So how much oil do you use in 3,000 mile's?Those engine's have a lot of crank case pressure generally that I have seen.
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Thursday, December 9th, 2010 AT 9:16 PM
Tiny
DADDYFIF
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I burn about one qt per change
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Friday, December 10th, 2010 AT 2:38 AM
Tiny
DADDYFIF
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  • 9 POSTS
Thank you didn't know they had a lot of pressure
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Friday, December 10th, 2010 AT 2:40 AM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Saturn allows 1 quart per 2,000 mile's so 1 quart in 3,000 mile's your doing good.
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Friday, December 10th, 2010 AT 4:05 AM

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