Transmissions interchange and motor swap

Asked by Nov 11, 2016 at 11:00 PM about the 1997 Pontiac Bonneville

Question type: Car Customization

I got a 1997 pontiac bonnieville. With 3.8 and I
want to know if I can swap that motor and
transmission. Over into my 2006 pontiac grand prix
will it work and what all do i have to change with it

1 Answer

115

YES THE ENGINE CAN WORK IN THE GP BUT THE ENGINE MANAGEMENT SYSTEM IS GOING TO BE DIFFERENT. YOU WILL NEED A 2006 3.8L ENGINE HARNESS AND ECM. IF YOU HAVE A 3.4 IN THE GP NOW THERE MAY BE SOME WIRING CHANGES BETWEEN THE BODY HARNESS AND THE ENGINE HARNESS AS WELL. BE PREPARED, AND HAVE SERVICE MANUALS FOR BOTH CARS. THEY CAN BE PRICELESS COMPARED TO PAYING SOMEONE TO DO THE CHANGEOVER YOURSELF.

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