Riviera V6-3.8L SC VIN 1 (1995)
Radio/Stereo: All Technical Service Bulletins
Radio - Excessive AM Static Noise with Engine Running
FILE IN SECTION: 9 - Accessories
BULLETIN NO.: 53-96-02
DATE: June, 1995
SUBJECT:
Excessive AM Radio Static Noise with Engine Running (Ground Exhaust System to Vehicle Underbody)
MODELS:
1994-95
Buick LeSabre, Park Avenue
1995
Buick Riviera
1994-95
Cadillac Concours, DeVille, Eldorado, Seville
1994-95
Oldsmobile Eighty Eight, Ninety Eight
1995
Oldsmobile Aurora
1994-95
Pontiac Bonneville
CONDITION
Some owners may comment on excessive static noise noted while listening to AM radio stations with the engine running. Noise dissipates when the
engine is turned off.
CAUSE
Ignition noise is transmitted from the engine to the exhaust system. Because NVH concerns have resulted in the exhaust system being suspended by
rubber lined hangers, the system is not grounded. The exhaust system acts as an antenna and rebroadcasts the ignition noise, having the greatest impact
on AM band reception.
CORRECTION
Ground the exhaust system to the vehicle underbody using the following procedure:
Materials needed:
1. One 1/4 - 3/8 inch wide braided ground strap with a crimp-on ring terminal on at least one end.
2. One # 10 or larger sheet metal screw.
3. One stainless steel hose clamp with a diameter to match the exhaust system being modified.
Important:
Clean attachment area before securing hose clamp to ensure a good ground connection.
Install or Connect
