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Oil coming from throttle

Tiny
KHALIDDVD
  • MEMBER
  • 2006 HYUNDAI ACCENT
  • 1.4L
  • 4 CYL
  • 2WD
  • MANUAL
  • 190,000 MILES
My car experience: slow acceleration.
Some loss of power.
Oil coming from throttle and intake air filter cover.
When operate AC, engine seem to go to stop.
Saturday, February 24th, 2018 AT 10:30 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,381 POSTS
Hello,

This can be caused by two problems; either you have excessive blow by which forces oil in to the intake or you have and pressure vent control issue. Please start the engine and allow it to run. Then remove the oil cap to see if huge pressure is exiting the engine. Next check the PCV valve here is the location below.

Check out the diagrams (below).

Please let us know what you find.

Cheers, Ken
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Monday, February 26th, 2018 AT 1:39 PM
Tiny
KHALIDDVD
  • MEMBER
  • 51 POSTS
Ya, there is an air when putting hand on the filler cap, but pcv seems ok.
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Thursday, March 8th, 2018 AT 12:41 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,381 POSTS
Yep excessive blow by means the piston rings are worn out here is a guide to help you see what you are in for when changing them out.

https://www.2carpros.com/articles/replace-engine-piston-rings

Please let us know what happens.

Cheers, Ken

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Thursday, March 8th, 2018 AT 10:06 AM

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