Question about 1999 Oldsmobile Intrigue

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Went to change fouled plugs. decovered there was oil in the spark plugs chamber?

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Make sure oil is not coming down from bad valve cover gasket, check for leaks at intake gasket, those are most likely culprit

Posted on Mar 15, 2011

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Hi there, I own a 1979 Austin Mini Cooper, Beautiful car although it always fouls out with the spark plugs?? And not the same one either ?? I'm getting so annoyed at it I just want a straight answer the...


Are the plugs getting fuel fouled or oil fouled? If it is oil getting into the combustion chamber then you are looking at either badly worn cylinders, bad oil rings on the pistons, or bad valve stem seals. If they are getting fuel fouled then your carburetor is dumping way too much fuel into the engine and I would suspect that maybe the float is stuck or not properly adjusted.

Aug 23, 2014 | Cars & Trucks

1 Answer

My 97 honda accord is blowing white smoke and running rough then i went to start it now it wont start


Sounds like either a blown motor (rings need replaced) or a bad head gasket or cracked head.
If the rings are bad your car would have felt like it was losing power because the engine will no longer have the same high compression that it's required to turn the wheels. You may have heard your engine knocking or seen a light blue colored smoke coming from your exhaust as a result of your engine burning up oil in the combustion chamber from the rings leaking.
If your head gasket is leaking or your head is cracked you'd likely find milky looking oil when you drain your oil from water/antifreeze being mixed in and noticed a white smoke coming from your exhaust that is actually water vapor coming through the exhaust.
If your car was running rough when you last shut it off try pulling all of your spark plugs and either cleaning them or replacing them all. A bad head gasket or bad rings can both foul spark plugs. A car will run rough with 1 or 2 fouled plugs, but once enough foul it will no longer run at all just sit and crank over. If changing the plugs get's it started for ya, check your tailpipe first for water, if nothing, change your oil. If no signs of water/antifreeze or milky colored oil then it's probably rings.

Aug 27, 2012 | 1997 Honda Accord

2 Answers

One plug foul after 200 miles runs ruff


the next time it fouls check the plug when you take it out, if it is covered with oil then you may have a broken ring on the cylinder that is allowing oil to pass through to the combustion chamber and fouling the plug. Or the valves pay be letting oil drain in past the valve seats.

Jul 04, 2012 | Chevrolet Caprice Classic Cars & Trucks

1 Answer

Scott, 95 GMC 5.7L keeps fouling plugs


Hi Dale,

Several factors can contribute to spark plug fouling:

- The air/fuel ratio may be too rich as a result of incorrect carburetor adjustment or a poorly performing fuel injection system.
- Worn piston rings or valve seals may allow too much oil to leak into the combustion chamber, leading to oil fouling.
- The ignition system may not be performing properly.
- Prolonged idling or continuous low-speed driving may keep the spark plug from reaching its optimum operating temperature. Using too cold a spark plug can lead to the same problem.
- A dirty air cleaner can create a too-rich condition which can lead to fouling.

Have each of the above checked and corrected.

Fuel, oil and carbon fouling can all be the result of different causes but, once a spark plug is fouled, it will not provide adequate voltage to the firing tip and that cylinder will not fire properly.

In many cases, the spark plug cannot be cleaned sufficiently to restore normal operation. Hence, I always recommend that a plug be replace, once it becomes fouled.

Cheers,

Scott


"If this has helped you in any way, please be kind enough to rate this solution"

Nov 02, 2011 | 1995 Chevrolet K1500

1 Answer

95 GMC 5.7l keeps fouling plugs


Hi Dale,

Several factors can contribute to spark plug fouling:

- The air/fuel ratio may be too rich as a result of incorrect carburetor adjustment or a poorly performing fuel injection system.
- Worn piston rings or valve seals may allow too much oil to leak into the combustion chamber, leading to oil fouling.
- The ignition system may not be performing properly.
- Prolonged idling or continuous low-speed driving may keep the spark plug from reaching its optimum operating temperature. Using too cold a spark plug can lead to the same problem.
- A dirty air cleaner can create a too-rich condition which can lead to fouling.

Have each of the above checked and corrected.

Fuel, oil and carbon fouling can all be the result of different causes but, once a spark plug is fouled, it will not provide adequate voltage to the firing tip and that cylinder will not fire properly.

In many cases, the spark plug cannot be cleaned sufficiently to restore normal operation. Hence, I always recommend that a plug be replace, once it becomes fouled.

Cheers,

Scott


"If this has helped you in any way, please be kind enough to rate this solution"

Nov 02, 2011 | 1995 Chevrolet K1500

1 Answer

Cause of spark plug failure.


Usually it is because of fouling from either oil or too much fuel allowed to enter into the chamber. But bad spark plug wires (weak spark) could cause them to fail quickly.

Sep 02, 2011 | 1984 Mercedes-Benz 190

1 Answer

Smoke from one exhust pipe and rough idle ,455 v8,changed oil,changed valve cover gaskets and cleaned fuel tank changed fuel fliter,smokes at idle and driving.


The cause may be from worn valve seals on that bank of the engine, and oil enters the combustion chamber fouling the spark plug(s). A Compression test will be needed to verify if it is the seals or piston rings not sealing.

Apr 14, 2010 | 1972 Oldsmobile 98

2 Answers

Cyl#3&5 foul plugs 97 suburban good compression all cyl new cap rotor distributor wires plugs module


Fouling occurs when the spark plugs' firing tip becomes coated with excessive fuel, oil, or combustion deposits so that it is unable to produce a spark. A plug can become fouled from continuous low speed driving, improper spark plug heat range (too cold), improper timing (over-retarded), too rich an air/fuel ratio or an oil leak into the combustion chamber. A variety of self-cleaning features are designed into most plugs to reduce fouling.

Jul 17, 2009 | 1999 Daewoo Nubira

1 Answer

Sparkplug Black Carbon Fouled


sounds like valve guide seals are leaking allowing oil to enter the combustion chamber with is fouling the plugs with carbon build up.

Jun 02, 2009 | 1991 Toyota Corolla

2 Answers

Car/1990 Toyota Corolla


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....

Sep 06, 2008 | 1990 Toyota Corolla

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