Spark Plugs and Wires
Chevy Impala
Chevy Suburban

How do you get to the back plugs on a 3.1 V6 1999 Impala to replace them?


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Wiki User
2015-07-15 19:02:25
2015-07-15 19:02:25

Short and long extension, one 90 degree elbow, 3/8 ratchet and be prepared to bloody a couple of knuckles. On the bright side, plugs should only need changing every 100K miles.

If your car has the 2 dogbones on the front of the engine all you have to do is loosen the nut where they swivel on each one and you then pull the engine forward to get to the back plugs.


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front plugs are easy to get at! the back ones are a little tricky,I found the best way to remove back plugs on a 3.1,is to remove coil pack,it has 3 bolts to hold it you can get to back plugs easier!!#1 plug is under alternater.

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to change the plugs, remove the air filter element - lean over engine to back and unscrew plugs and replace same with new ones

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I suspect you have V6. If it is the case, you will have to remove intake manifold. There is no other way to replace it.

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Loosen the 2 dog bones on the front of the engine and pull the motor forward to get to the back plugs.

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The back package tray will have to come out to get to the bolts that hold them in.

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