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Why am I getting oil on my valve cover where the vacuum line insertsinto the valve cover

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Blocked pcv valve

Posted on Apr 24, 2015

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  • 2 Answers

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Posted on Jan 02, 2017

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1 Answer

Oil is disappering with no leaks please help me


ENGINE BURNING OIL MORE LIKELY.CHECK SPARK PLUGS IF THEY LOOK LIKE THEY HAVE OIL DEPOSIT ON THEM.YOUR ENGINE HAS WORN PISTON RINGS AND WORN VALVE GUIDES WORN VALVE SEALS.ALSO CHECK PCV VALVE MAKE ITS GETTING VACUUM.YOU SHOULD GET SUCTION AT PCV VALVE WHEN YOU REMOVE IT FROM VALVE COVER PLACE THUMB AGAINST VALVE SHOULD BE VACUUM COMING FROM IT.IF NOT LOOK FOR DISCONNECTED, LOOSE OR BROKEN VACUUM LINE AT THE INTAKE MANIFOLD FEEDING THE PCV VALVE HOSE.

May 13, 2011 | 2002 Cadillac Deville

1 Answer

Can't find source of oil leak


Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Mar 14, 2010 | 2001 Lexus RX 300

1 Answer

Have oil leak under intake


Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Mar 10, 2010 | 2002 Ford Taurus

1 Answer

Oil leaking around engine


Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Feb 22, 2010 | 2000 Ford Focus

1 Answer

Oil leak around timing belt area


Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Feb 21, 2010 | 1999 Volvo S70

1 Answer

Oil leak


Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Feb 20, 2010 | 1994 Suzuki Sidekick

1 Answer

Oil leak on top eng it not vale covers it leaking under intake


Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Feb 14, 2010 | 1995 Oldsmobile Aurora

1 Answer

Motor is leaking oil


Oil leak can be attributed to several factors.
1. Gasket failure.
2. Uncontrolled Crank case pressure Failure.

RECOMENDATION:
Tighten both the valve cover and oil pan bolts.
Replace the Positive Crankcase Ventilation Valve and vacuum line.,

INFO: PCV
This is a valve causes a negative vacuum on the engine while its running, As to say if it had a leak in a valve cover it should not be leaking while its running, only when the engine it turned off.

Hope this tip guides you in the correct direction to solve this problem.

R/
David

Feb 10, 2010 | 1992 Honda Accord

1 Answer

I have a 96 jeep cherokee 4.0 sport. whenever i am driving steep grades at a constant 3500 rpm, i start blowing oil from somewhere. it dosent leak any other time. the rear main seal seems fine. what could...


At an Idle your 4.0 creates a vacuum between the throttle body and the intake valves. As you need more throttle less vacuum is created. The PCV ( positive crank case vent) works off this vacuum. At the back of the valve cover there is a vacuum line that goes to the intake manifold. This line can become clogged. An engine produces "blow by". If you were to take oil cap off you might see it at an idle. Check the air filter. there is a line from the valve cover that leads to the airbox. this is where the "blow by" goes when pcv line is clogged. Part 1 the problem...... part 2 the fix.

Jan 21, 2010 | 1996 Jeep Grand Cherokee

2 Answers

Pcv valve


Depending on model you find it in either rocker cover, possibly at rear or in the oil filler cap if early motor.

Jun 14, 2008 | Ford F-150 Cars & Trucks

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