SOURCE: Where is the powertrain control
It is located in the air cleaner.Take off the air filter cover/air boot.\Then there are 2 8mm headed bolts on the top of the air cleaner.remove the two bolts and pull off the cover.The pcm is located behind there.
The Powertrain Control Module (PCM) is located on the left front frame rail.
4.2L Engine
The Powertrain Control Module (PCM) is located in the engine compartment. It is mounted on the left side of the engine.
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