1984 Chevy Choke Relay Buzz Issue: Technical Service Bulletin 85644
Choke Relay: Customer Interest
Fuel - Choke Relay Buzz
Number 85-6(Gasoline)-44
Date 8/85
Subject:
CHOKE RELAY BUZZ
1982-85 6000 MODELS AND 1982-84 PHOENIX MODELS WITH LE2 AND LH7 2.8L V6 ENGINE
CHOKE RELAY LOCATION
Some vehicles may exhibit a choke relay "buzz" condition when the ignition key is turned "off" when the A/C heater mode selector is in the "off"
position (no blower operation).
This "buzz" condition can be eliminated by replacing the old relay, P/N 14039662, with a new relay, P/N 14089568, which has a diode in series with the
relay coil.
This new relay is an interim release for the 1985 models.
The illustrations show the location of choke relay on both the 6000 and Phoenix.
