No spark on my 66 coronet
 

hey guys, im having an issue with my 66 coronet 440 with the 318 poly in it. its turning over but no spark, i did the plugs, wires , coil and distributer and rotor. it ran fine for about 1 month then just suddenly died. so what could be the problem?

Check all the grounding cables. Where the battery runs from the negative terminal to the engine and to the body.

Also, pull the ECU (If it has electronic ignition) and clean the mounting surface. The ECU's ground thru the mounting surface.

Does the car turn over but just won't fire?

Jake

Nevermind but thanks for replying to my post it was the resistor i diagnosed myself but soon as i changed it fired right up, first crank.