Question about 2003 Chevrolet Impala

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Cant find spark plugs

Where are all the spark plugfs on my 2003 3.8 chevy impala

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There are three in the front and three in the back near the firewall. Unscrew the top two bolts and the one holding the rubber hose connecting to the airfilter it will come right up. You also have to remove the 3 bolts holding the cross bar. It may be a bit more tricky to get to the back three; some have stated you may have to remove the alternator to get to them. I would suggest investing in a Haynes manual you should be able to find one an a local auto parts store. Good luck!

more info here at the cartalk forum:

Posted on May 28, 2009


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It makes it a lot easier if you move the alternator out of the way. some times you can get to them from the bottom of the car. When you get to the plug wires twist them to get them lose from the spark plug. Make sure you grab the end of them. don't twist just the wire.

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