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A lot of black carbon on the plug means your engine is running too rich, too much fuel Oil on the electrode area means your rings are going bad and oil is bypassing the rings on the pistons and getting up into the combustion area. Look for any cracked white ceramic on the top of the plug leading to a short/misfire Look for a broken plug insulator usually caused by detonation. Look for a blistered insulator, usually caused by using the wrong heat range plug A normal plug's insulator nose usually varies from a light tan to a greyish color. Some slight deposits are normal on used plugs.
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What effects can bad spark plugs have on your vehicle?
Bad spark plugs can have a variety of effects on the performance of your car's engine. Signs of bad spark plugs include a rough idle, engine hesitation, hard starting, check engine light illuminated with a DTC P0300 and reduced engine power.
What are signs and symptoms of a bad ignition coil on 1992 Chevy astro?
No electrial spark or fire at the plugs.
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.
Is it bad to change spark plugs early?
No.
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
Will a bad alternator cause new spark plugs to smoke?
Spark plugs don't smoke. A bad alternator would cause a dead battery.
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.
