Re: No Spark Now Weak Spark Please Help
If you have a code reader check codes and post them here. Also check fuse 20 in the fuse block under the dash. If the fuse is good check the WT/LB wire at the coil with the key on for battery voltage using a voltmeter. If it is not what battery voltage is then there is an issue in the circuit. The radio capacitor also ties into the circuit that feeds the coil so try disconnecting it and see what happens. With a test light clipped to positive check the VT/BK, VT/WT VT/RD??? wires (diagram I'm using isn't clear on the VT/RD wire) at the coil while cranking. Each one should flash, as this is the PCM grounding and ungrounding the primary circuits of the coil. If you still have a weak spark then you possibly have a wiring issue or a bad PCM.
Master ASE Certified L1 Chrysler Technician- still a Ford fan at heart.
1964 Thunderbird Hardtop- Chantily Beige- 390 FE 4V V8-Uncle's Car
1966 Thunderbird Convertible- Red- 390 FE 4V V8- Uncle's other car- waiting for paint and body work!!!