Question about 2003 Toyota Corolla

1 Answer

High oil consumption

Already tried higher weight oil
crank case is producing pressure
where is the pcv valve

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 195 Answers

Hello;
The PCV valve is located on the intake manifold. It screws in and there will be a hose to the valve cover. Pricey little devil I must say.
Thanks;
Rich
RPM Northwest

Posted on Jan 22, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Can a blocked pcv cause a oil leak


The upper part of your engine is like a compressor. The lower part is similar, but not to the same degree because there is a lot of room in the lower part of the engine which keep the pressures much lower. Yes, a blocked PCV valve can cause excessive crankcase pressures to build up which can cause oil to leak out of oil seals which are worn and weak. In some cases it can even cause oil leaks on low mileage engines which have no means of venting the crank case pressures. I hope this has helped you. Usually I don't run into too many stopped up PCV valves, just restricted ones and ones which won't close when they are suppose to.Good luck

Apr 27, 2014 | 2001 Nissan Pathfinder

1 Answer

Oil leaking into the mass air flow hose


High crankcase pressure due to worn rings or a plugged crank case ventilation valve (PCV). This can also be caused by an overfilled oil level

Sep 18, 2012 | 2001 Kia Sportage

1 Answer

I have changed pcv valve twice and still getting oil in breather


The PCV valve does not control the oil situation, it just keeps the pans and valve covers from blowing off during a backfire. Excessive Oil in the breather is a result of excessive crankcase pressures, usually due to a worn engine, specifically rings.
SOME oil is normal, especially if you are loaded heavily and hard on the throttle.
There is a tester that measures crankcase pressures, but usually some other manifestation shows, like excessive oil consumption.

the PCV system draws crankcase fumes into the intake at idle and lower throttle situations. air going into the crankcase is filtered by the small PCV filter, where the oil shows up....

At highter throttle and lower intake manifold pressures, the system reverses, the PCV valve closes, and the fumes exit the crankcase VIA the breather filter. All of this is normal.

It costs tons less to periodically clean or replace the PCV filter.

Feb 13, 2011 | 1988 Ford Econoline

1 Answer

Oil in air filter wot causes this car in qustion is a jag xj8


This issue is caused by crankcase pressure issue.
Normally filtered air enters the engine, runs through the crank case and then is pulled into the intake through the PCV valve. Durning hard acceleration, the PCV valve closes (to prevent explosion of fumes in crank case and blowing valve covers and pan off) and the PCV system reverses, with fumes coming back through the filtered intake.

Usually there is minimal oil that gets back into the air cleaner.

So, when somthing goes wrong, like excessive blow by, for example, the crankcase pressure overcomes the PCV valve and intake of fumes capability, and oily starts showing up in the air filter.

Investigate the crankcase pressure and PCV system.

Oct 14, 2010 | 1998 Jaguar XJ8L

1 Answer

Positive ventilation crank case valve location


I have one of these cars too, also 3.5. I purchased with 34K and has used a quart of oil every 1000 miles since then. It has no leaks or smoke or any other signs of oil consumption. So much research, nobody knows why these engines do this, some have gone as far as contacting Chrysler just for them to say, " that's normal". But here is the diagram for the PCV:

db8978e.jpg

Nov 11, 2009 | 2006 Chrysler Pacifica

2 Answers

Oil coming out of dipstick


What engine? The oil level is good, not to high? If yes, it has too much crankcase pressure. Change the PCV valve and check the crankcase air filter. Also make sure you have vacuum at the PCV.

Apr 09, 2009 | 1986 Chevrolet Camaro

Not finding what you are looking for?
2003 Toyota Corolla Logo

204 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

60541 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21927 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...