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Q: Engine swap

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Wanting to do an engine swap on a 2002 Pontiac Grand Am SE1 3.4L. Engine we want to put in is from a 2004 Pontiac Grand Am SE1 3.4L. Just want to make sure they'll work together since they're different years.

My car has 200000 miles.
My car has an automatic transmission.

Hi there:

Sure; both engines are compatible with either 2002 or 2004 Pontiac’s. Just be sure that the mechanic gives the vehicle back to you without any starting issues; as this tends to be a problem if the mechanic does not properly reset the ECM to the new motor and ancillary sensors and ignition components that control and monitor the operation of the engine.

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