Oil coming from throttle

2006 HYUNDAI ACCENT
190,000 MILES • 1.4L • 4 CYL • 2WD • MANUAL
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KHALIDDVD
  • MEMBER
  • 56 POSTS
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.
Feb 24, 2018 at 2:30 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,549 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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Feb 26, 2018 at 5:39 AM
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KHALIDDVD
  • MEMBER
  • 56 POSTS
Ya,there is an air when putting hand on the filler cap,but pcv seems ok...
Mar 7, 2018 at 4:41 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,549 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

Mar 8, 2018 at 2:06 AM
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