Hi all, first off, thanks for the read!

I have a non-starting Chevy Suburban 5.7 L Vortec 1998. It quit starting after an episode of overheating. It did start again and drive after the overheating incident. But now not starting! I'm now only getting spark on the passenger side of engine.

I've already changed the crank sensor which was one of the suggestions from the Web. I haven't changed the coil. Is this truck (98 Suburban) equipped with a double-coil pack, where one, associated with one side of the engine, might've gone bad? Or, could the computer be causing this? Else, what could it be?

Thanks a lot!