Question about 2003 Chevrolet Cavalier

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Spark plugs i have a 2003 chevy cavalier and i want to change the spark plugs. do i have to take off the valve cover? its a 2.2 ecotec engine.

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  • bobbo69 Jun 30, 2009

    do i have to take the valve cover off to get to the plugs?

  • yadayada
    yadayada May 11, 2010

    try live chat.

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The spark plugs on the cavalier are under the 2.2 ecotec panel located on the top of the engine. There are no spark plug wires to deal with. The electronic coil pack directly attaches to the plugs with rubber seats like in a spark plug end. Then you use a deep socket ratchet to get the plugs out. Use anti-seize compound when replacing the plugs.

Posted on Jun 30, 2009

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Posted on Jan 02, 2017

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there is a flat plastic box between the dohc that says ecotec on it. it is to the left of the oil fill cap. there are four fasteners on it i believe... possibly two... but remove them and you might have to bend the steel bracket that is above it out of the way to pull it off. it is important to pull straight up as the spark plug boots are attached to the cover and need to be un-seated. once that is off put a spark plug socket on the spark plugs (they have foam inserts to hold the plug from falling out) or use a regular deep socket and once loose take a small piece of tubing or hose and stick it on top of the spark plug, then unscrew it with the tube. to reinstall either use a sparkplug socket or use the tube to start the threads... DO NOT CROSS THREAD and DO NOT OVERTIGHTEN. try to remember how tight they were when you took them out. then push the cover back on making sure the boots line up with the plugs and reattach with the fasteners and bend that steel bracket back down.

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Need to know how to change spark plugs no wires so where r they???


I'm assuming you have the 2.2 Ecotec engine, for they have teh spark plugs hidden under the plastic cap on the engine's valve cover. The plastic cap which should say "2.2 Ecotec" can be removed with 10mm socket, and the valve cover (In case you didn't already know) if the aluminum top piece of the engine. They are a little ways down, so be careful not to cross thread the plug.
Good Luck Blaccent

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Engine Swap


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