Im haveing problem of my corolla xe 2e engine... at idling its not stable... i already did tune-up, replace spark plugs, change oil, replace hight tension wires... what else could be the problem why my engine stumble at idle??? any advice???

broken gear in oil pump or distribitor

ENGINE OIL ISSUES/ OIL LEAK

The oil is getting leaked from its running area. The oil pump has to be pressure tested by pressure test to confirm the leak and area of leak: -----

For step by step troubleshooting check the help links mentioned below: -----

Click the link below: -----

Water in engine oil?

http://schematicsdiagram.blogspot.com/2011/12/water-in-engine-oil.html

-----------

Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

---------

High Oil Level on Dipstick

http://whatisbyme.blogspot.in/2012/06/high-oil-level-on-dipstick.html

---------

Oil pouring out from left front of engine?

http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html

----------------

Common Causes of Car Oil Leaks?

http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html

-------------

Troubleshoot Car Oil leak?

http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html

---------------

Kia Sportage leaking oil from oil pan?
http://howtobyme.blogspot.com/2011/11/kia-sportage-leaking-oil-from-oil-pan.html

----------

Toyota Corolla leaking oil from timing cover?

http://technoanswers.blogspot.in/2012/02/toyota-corolla-leaking-oil-from-timing.html
-------------

Overfilling oil in engine?

http://whatisbyme.blogspot.in/2012/06/overfilling-oil-in-engine.html

-------------

2000 Dodge Ram 3500 Cummins Diesel: Oil Leak issues?

http://schematicsdiagram.blogspot.in/2012/06/2000-dodge-ram-3500-cummins-diesel-oil.html

--------------

How to Replace an Oil Pan Gasket?
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html
------------
HOW TO REPLACE AN OIL PUMP
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html
--------------
HOW TO CHANGE ENGINE OIL AND FILTER
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html
----------------
HOW TO REPLACE AN OIL PRESSURE SWITCH (SENSOR)
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pressure-switch.html
-------------
How to Check Differential Oil Leaks and Replace Oil
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-differential-oil-leaks-and.html
------------
HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html

------------

HOW TO RESET OIL CHANGE INDICATOR?

http://whoisbyme.blogspot.in/2012/07/how-to-reset-oil-change-indicator.html

-------------

These details will help.

Thanks.

The oil is getting leaked from its running area.The oil pump has to be pressure tested by pressure test to confirm the leak and area of leak:-----
For step by step troubleshooting check the help links mentioned below:-----

Click the link below:-----

Water in engine oil?

http://schematicsdiagram.blogspot.com/2011/12/water-in-engine-oil.html

-----------

Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

---------

High Oil Level on Dipstick

http://whatisbyme.blogspot.in/2012/06/high-oil-level-on-dipstick.html

---------

Oil pouring out from left front of engine?

http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html

----------------

Common Causes of Car Oil Leaks?

http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html

-------------

Troubleshoot Car Oil leak?

http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html

---------------
Kia Sportage leaking oil from oil pan?
http://howtobyme.blogspot.com/2011/11/kia-sportage-leaking-oil-from-oil-pan.html

----------

Toyota Corolla leaking oil from timing cover?

http://technoanswers.blogspot.in/2012/02/toyota-corolla-leaking-oil-from-timing.html
-------------

Overfilling oil in engine?

http://whatisbyme.blogspot.in/2012/06/overfilling-oil-in-engine.html

-------------

2000 Dodge Ram 3500 Cummins Diesel: Oil Leak issues?

http://schematicsdiagram.blogspot.in/2012/06/2000-dodge-ram-3500-cummins-diesel-oil.html

--------------

How to Replace an Oil Pan Gasket?
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html
------------
HOW TO REPLACE AN OIL PUMP
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html
--------------
HOW TO CHANGE ENGINE OIL AND FILTER
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html
----------------
HOW TO REPLACE AN OIL PRESSURE SWITCH (SENSOR)
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pressure-switch.html
-------------
How to Check Differential Oil Leaks and Replace Oil
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-differential-oil-leaks-and.html
------------
HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html

------------

HOW TO RESET OIL CHANGE INDICATOR?

http://whoisbyme.blogspot.in/2012/07/how-to-reset-oil-change-indicator.html

-------------

These details will help.
Thanks.

Take a compression test on # 4. It may be a little oil burning w coolant getting by the head gasket. POSSIBLE faulty injector or not firing on time. Ck for any oil in the anti freeze or anti freeze in the oil.

It could be your mass air flow censer sometimes when the censer goes bad it sends incorrect readings to your ecu causing inaccurate fuel distribution.

Well, Allan, nothing jumps out at me! You could start by changing those plugs and cleaning the throttle body and butterfly with some good carb cleaner. I know that small carbon deposits can effect idle and can cause a rolling characheristic. Cleaning the IAC, throttle body and MAF (Masss Airflow Sensor) can do wonders. Use electrical cleaner to spray off the MAF not carb cleaner, it is the hair thin wire located inline just after the air cleaner element. You probably already know all of this, but hope it helps out!!

I have toyota corona 3s engine it smokes black and fuel consuption is high we have changed the engine oil and cylinderhead gassecate but still black smoke is comming what should i do

Try giving it a tune up, change the spark plugs and adjust the timing belt.
Let me know if this helps.

If Biggy1 has described it right, I think when you remove the WIRE to the spark plug ( not the plug itself ) and oil jumps out, there is a cylindrical seal that needs replacing and one does not need to even remove the cylinder head.
I have the same problem with my corolla. On the other hand if Biggy meant when removing the SPARK PLUG oil was on the contacts....

Hi,

The only positive way to check if the oil pump is working and therefore there is correct oil pressure is to temporary install a non-electrical oil pressure gauge that uses a small copper tubing to sample the oil/pressure and drive a needle on the gauge. Depending on temperature, idle should register about 20+psi. Having done this and confirmed that indeed there is sufficient oil pressure then it may simply be a defective oil sending unit. Otherwise, no or low oil pressure at idle is an indicator that the engine needs to be opened up again.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

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