We replaced a bad 4.3 vortec engine in a 1999 blazer with a 4.3 vortec engine out of a 2002 blazer, both blazero were 4 wheel drive. I can switch the blazer on and I hear the fuel pump come's on,
The engine will not turn over attempt to start or
anything but fuel pump and dash lights come on
like the should . No sound at all from the starter,
and there was no issues with the start before
engine swap. Suggestions anything that may help
resolve this issue