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A fouled spark plug will make you lose horsepower if the plug is not producing a good spark. The other thing a fouled plug can do is if it is not firing right the fuel that gets into the cylinder dosent get burned all the way and it is then pushed out the exhaust valve and goes into the exhaust system. from there the fuel can get hung up in the catalic convertor and then burn in the convertor and then you will nedd to replace the convertor
it also causes the unburnt gasoline to wash the oil off the cylinder wall and cause undue wear
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∙ 14y ago
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Can a fouled spark plug cause the check engine light to come on?
Yes
Engine car startup vibration?
Probably a spark plug is fouled up.Also check plug wires if you have an older model.
What are the symptoms of a fouled spark plug?
The symptoms of a fouled spark plug are normally self evident in that the engine will loose power, run rough and use more fuel. Prolonged use of an engine with a spark plug in that condition will most certainly damage the catalyst convertor. Should renew the plugs and have an emissions test done to enure you are still complying with current regulations.
Is check engine a result of fouled spark plug?
That is on of many possibilities. See related questions for more info.
Can a fouled spark plug cause a vibration?
yes
My Montgomery ward riding lawn mower engine turns over but won't start?
Try starting the engine, pull the spark plug out and see if it is wet with gas, if it is you might not have any spark(possible from a fouled spark plug) or it might have low compression, put the plug into the spark plug boot and set the tip of the plug onto something that is metal on the engine and turn the engine over. you should see spark, no spark=ignition problem. If the plug is not wet the engine isn't getting any gas and you have a carburetor problem.
WHAT IS THE MEANING OF FOULED SPARK PLUG?
A spark plug incapable of producing sufficient spark to ignite the air/fuel mixture.
What is a fouled spark plug?
Fouling spark plugs can happen when the tip temperature is insufficient to burn off carbon, fuel, oil or other deposits and causes spark to leach to metal shell...no spark across plug gap will cause a misfire. Wet-fouled spark plugs must be changed as they won't fire. Dry-fouled spark plugs can sometimes be successfully cleaned by bringing the engine up to the operating temp.
Why does an engine run roughly?
if it's runninng rough my guess could be spark plugs are fouled up. if not then next check the spark plug wires then the distributor.
Does a fouled spark plug create a knocking sound?
sometimes
When should you change the spark plugs on your motorcycle?
You should check your spark plugs periodically as they can give an indication as to how your engine is running. If the spark plug is fouled the engine wont work as efficiently as it's supposed to. A normally operating engine should result in a light brown discoloration, check your spark plugs against a reading chart like http://www.ngksparkplugs.com/techinfo/spark_plugs/faq/faqread2.asp If the spark plug is fouled or eroded, replace it. It's a simple job and spark plugs aren't too expensive.
Is it possible for an internal combustion engine to run underwater?
as long as the air intake is above water and the spark plug connection is not fouled or shorted.
