Question about 2003 Chevrolet Monte Carlo

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I just replaced the spark plugs and wires used platinum plugs instead of the iridium that were the oem and now its sputtering during acceleration of course this didnt happen right away so im not sure if this is the cause. Could it be the fuel filter slowing down the presure in the fuel rails possibly.

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  • patricmichel Aug 05, 2010

    the check engine light did come on a couple of times but didnt stay on.



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The difference in plugs would not make it misfire . Is the check engine light on ? Most times when it is fuel system related it will not throw a code . I have installed new plugs that have been dropped and misfired but this is something that you will have to diagnose if it's one cylinder or multiple misfires. Please let me know if i can be of any help.

Posted on Aug 05, 2010

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With spark plugs you should always replace them with what your car calls for (if you use different plugs you will knotice a difference)

another thing to check is the gap (the space between electrodes)

make shour that the gap is set to the one that is call for by your vehicle if its too small it can cause missfires if too large the plug will generate a weak spark thus the sputtering

take your car to a service center and have your plugs gaped or if youve got a gaping tool gap them yourself

if the issue still occurs check your plug wires and coile pack to see if there delivering the rite spark if not they are the issue (try your plug wires before the coile pack if there fine test the coile pack

replace whats needed (the coile pack can be a bit pricy)

i hope this helps

Posted on Aug 06, 2010


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