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Discussion Starter · #1 ·
Greeting, and am new to the forum.

I have a 2001 Lesabre needing a replacement engine and came across what looks to be a '96-'99 Series 2 engine and transmission (the seller cannot verify year of donor vehicle). Judging by the engine cover, definitely looks to be a '96-99 series II used in the previous model Lesabre -- and not the 00-05.

The engine and tranny had 81K mi at pullout per the seller. Assuming a '96-'99, will I run into electronic or wiring harness issues if going with a Series 2 used in the previous platform? Just trying to do some research on compatibility before going any further. I also know about the intake issues and that I would need to address that up front being proactive.

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