Rolls Royce Silver Shadow Engine

The 4 Cylinders Which Aren't Working Are The Ones On The Back. All The Cylinders Get Energy But The 4 Ones On The Back Don't Work.

I Don´t No What To Do, My Car Is Out Of Service, Every Day Turn On And Yesterday I Can´t Do It, No Ignition No Start, No Turn On The Dash...

Replaced Starter Swich With Comperable Year, But There Were Extra Wires That Came From Internal From The Switch Box. Did The Exchange, One...