K 3500 Truck 4WD V8-305 5.0L (1988)
Radio/Stereo: All Technical Service Bulletins
Radio - Popping Noise Due to Spark Plugs
Number:
88-107-6E
Section:
6E
Date:
JAN., 1988
Subject:
RADIO POPPING NOISE DUE TO SPARK PLUGS
Model and Year: 1988 LIGHT DUTY TRUCKS WITH
4.3L, 5.0L AND 5.7L ENGINES (VIN CODES Z, H AND K)
TO:
ALL CHEVROLET DEALERS
Some 1988 trucks with 4.3L, 5.0L and 5.7L engines may experience a popping noise in the radio due to the use of AC CR43TS spark plugs. This
condition can be repaired by replacing the CR43TS plugs with R43TS plugs (P/N 5613325). R43TS plugs entered production with engines produced
since August 30, 1987. Spark plug gap specification is 0.035".