Engine wii not crank. Mild thump heard @front of engine. What is possible Solut?

There's still either a bad connection between the battery and the starter, engine ground included, or the starter is bad.

ck pwr to starter and ck pwr to small starter wire while a friend tries to start.we call this the hit wire if you have pwr the starter is bad

click or thump? Is the engine (watch any of the pulleys) trying to turn just a little? Check voltage drop when trying to crank.post results .