Swapped engine with automatic 1999 150 in my 1997 manual all sounds good. Just white smoke with gas smell from exhaust since it began running.
Mar 12, 2017 at 1:41 AM
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HMAC300
CERTIFIED EXPERT
48,601 POSTS
scan for codes and check fuel pressure with a gauge auto parts rent it. it may be pressure regulator is to high . also, check for a blown head gasket although if it just does it should be driven a bit to see if it clears up as it may. See link. https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator