Question about 2003 Chevrolet Impala

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Changing Spark Plugs

How do you get at the plugs in a Chev Impala 3.4 2003? Thanks.

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  • bmm62 Dec 08, 2008

    Amazing answer. Makes think I should have it done by a pro. Thanks.

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You dont have to move the engine at all!!! it is a tight fit but once you remove the brace that goes across the engine you can get the back three with a ratchet and socket

Posted on Nov 01, 2011

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There is 6 plugs on your engine. The 3 in the front you should be able to get with a spark plug socket,extension- and rachet. Once you take car of those three you have to rotate the engine forward to reach the rear three. then you have to rotate the engine forward
To rotate the engine forward you have to:

1: block the wheels and place the car in neautral, then disconect the negative battery cable.
2: disconnect the air intake duct.
3: remove the torque strut to engine bracket bolts, and swing the struts aside. place the bolt back inside the passenger side bracket.
4: using a pry bar in the passenger side bracket, rotate the engine forward and secure it in this position, to secure the engine in the forward position it will require connecting a rachet strap to the engine and to the frame or radiator support.
5: reverse the procedure when you have completed the task. put the car back in park and torque the strut to engine bracket bolts to 35ft-lbs

When you have the engine rotated forward it will be much easier to access the rear 3 plugs. to find the plugs once you have the engine rotated all you have to do is follow the plug wires to each of them.
make sure you remove the wires and replace the plugs one at a time so you dont mess up the firing order.

Posted on Dec 08, 2008

  • bikerkid9069 Dec 08, 2008

    its not to bad. the first time its a little sketchy. i dont know why GM had to make it a pain in the *** to do such a simple task. but if you have a friend that can help ya out it makes it a breeze to do.

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