Changed spark plugs ..and then the engie light came on and still runs poorly..
Do you have a code scanner? What code does it give? If you don't have a scanner and the car is drivable take it to an autozone and have them hook it up to the scanner to get the code or you can buy a cheap scanner for $50 if the blazer was not running rough before you may have not pushed a plug wire on completely and now the engine is misfiring on that cylinder. how many miles on blazer? the platinum plugs from should be good for 100K miles.
SOURCE: Changing Spark Plugs on 2001 Chevy Blazer
You have to jack up the vehicle and go through the wheel well. There is a flap that will lift out of the way and you can get to the plugs. The center one is a pain though because the steering shaft is in the way.
SOURCE: placement for spark plug wires for 1995 chevy blazer 4wd
i didnt fix it on my own couldnt get the diagram from you your site only gave me a ad for hp printers
i had to take it to a garage to take care of it i dont know if i hit the wrong link let me know
SOURCE: 2004 chevy malibu classic spark plug replacement
Search for the engine model ECOTec 2.2 rather then Malibu. It is very easy to replace the plugs, they are DEEP inside the engine so you will need a 6" socket extension for the spark plug socket. Needle nose pliers were required to retrieve the socket on the first plug. Don't push down hard on the plug, just enough to engage the nut. Full screen photo sequence is available at:
http://www.gaownersclub.com/forum/showthread.php?t=99068
SOURCE: replacing spark plugs on a 2004 chevy malibu
2.2L Engine
Allow the engine to cool before removing the spark plugs.
Attempting to remove spark plugs from a hot engine can cause the spark
plugs to seize. This can damage the cylinder head threads.
Clean the spark plug recess area before removing the spark plug.
Failure to do so can result in engine damage due to dirt or foreign
material entering the cylinder head, or in contamination of the
cylinder head threads. Contaminated threads may prevent proper seating
of the new spark plug.
Use only the spark plugs specified for use in the vehicle. Do not
install spark plugs that are either hotter or colder than those
specified for the vehicle. Installing spark plugs of another type can
severely damage the engine.
To install:
WARNING
Do not coat spark plug threads with anti-seize compound. If
anti-seize compound is used and spark plugs are over-torqued, damage to
the cylinder head threads may result.
Testimonial: "Thanks for the help, it was easy to change out the plugs with your info."
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