Celica L4-1998cc 2.0L DOHC (3S-GE) (1986)
Engine Accessory Bracket: Customer Interest
Engine - Interior Drone/Instrument Panel Vibration/Buzz
REFERENCE ENGINE NUMBER 011 (REVISED)
DATE 04-10-87
MODEL CELICA ST, GT, GTS
TITLE - INTERIOR DRONE AND INSTRUMENT PANEL VIBRATION
Some 1986 and 1987 Celica's may experience an interior drone noise at high engine RPM ranges (4,600 - 6,000 rpm). The drone noise may be
accompanied by a vibration or buzzing in the instrument panel area. To reduce the drone and instrument panel vibration the following modifications
should be made:
1.
Replace the rubber supports and the catalytic converter support brackets with the following new or field fix parts:
Prev. Part No.
New Part No.
Part Name
Quantity
1.
17565-63060 Same Rubber support, exhaust pipe ATM 2
2.
17565-16020 17565-63071* Rubber support, exhaust pipe MTM 2
3.
17504-63010 17504-74010 Bracket, Converter RH 1
4.
17505-63020 17505-74010 Bracket, Converter LH 1
*Use Part Number 17565-63060 for field fix to further reduce noises.
Right Side Support Bracket
2.
On Celicas equipped with the 3S-GE engine the catalytic converter upper support bracket bar has been shortened by 10 mm to accommodate a
narrower rubber support (April 1986). The support bracket bar also changed from a solid type to a pipe type (June 1986).