Test B: Noise Diagnosis

TROUBLESHOOTING HINTS, IGNITION NOISE
1. Check for loose or defective spark plug wire.
2. Check for defective spark plug.
3. Move all wiring away from ignition wires.
4. Reroute spark plug wires lying against anything that could possibly transmit noise to the Radio (car wiring or sensor leads that travel into the passenger compartment).
5. Check the ground from engine to dash. Install a braided ground strap if necessary.
6. Check heater core ground. Clean or install a braided ground strap if necessary.
7. Check air conditioner accumulator ground. Clean or install a braided ground strap if necessary.

Test B: Noise Diagnosis:

NOISE DIAGNOSIS TEST
Refer to symptom table in image above for Noise Diagnosis.

Fig. 1 Installing A Braided Ground Strap:

Installing a ground strap
To install a braided ground strap to Radio, cut the ground wire and run a braided ground strap from the case of the radio to a good, unpainted body ground.

Fig. 2 Installing A Filter Package:

Installing a Filter Package

Fig. 3 Install A By-pass Capacitor:

Installing a By-Pass Capacitor
Install a 250 MFD 100V capacitor on the generator output lead.