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If the mower starts and runs - but is constantly making little "misses" - suspect the plug first of all.

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14y ago

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Related Questions

What causes spark plugs to stop firing?

No spark from coil, bad plug wires, or bad plugs.


Will bad spark plugs cause an engine to burn oil?

No, but burning oil will give you bad spark plugs.


Can bad spark plugs cause your car to lose power and backfire in the intake manifold?

having bad spark plugs could effect how the spark sparks and when it sparks. new plugs is never a bad idea


Whats wrong with your 1990 Chevy lumina if the spark plugs are not firing?

you are not getting spark. this could be from a bad alternator, bad spark plugs, bad spark plug wires, or bad engine coils. The spark plugs and wires are the cheapest so try putting in new ones of those first.


What is the cause of shaking due to acceleration?

Bad spark plugs, spark plugs wires, etc.


My mechanic told me my crank sensor on my 2000 Chrysler sebring went bad so he changed it and then the spark plugs was the changing of the spark plugs necessary?

There is no way for us to know that.


How can you tell if the magneto in a riding lawn mower is bad?

does it have spark to the plug if not the part you might check would be the coil or the electronic start module probably the latter if it is a newer mower or of ots older then the coil magneto usually dont go bad could be a bad gap between the coil and the magneto if its an older mower could be a bad set of points if its an older mower point gap could be bad spark plug could be bad as I don't know exactly what the lawn mower is doing hard to tell what is wrong


Is it bad to change spark plugs early?

No.


Will a bad alternator cause new spark plugs to smoke?

Spark plugs don't smoke. A bad alternator would cause a dead battery.


Do bad spark plugs have to do with charging the alternator?

Spark Plugs do not affect your alternator. As long as your engine is running then it should be charging unless your alternator is bad


Does bad spark plugs give you a rough idle?

Yes. Bad spark plugs, bad spark plug wires and a bad distributor cap are the common causes of rough idling. If it has been a while since you changed these components, do so.


Could bad spark plugs make a engine shake?

Bad engine cushions can make the engine shake. bad spark plugs cause malfunction as the car starts running.

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