Sephia LS Sedan L4-1.8L (1998)
Technical Service Bulletin # 1CC004
Date: 981001
A/C - Rumbling Noise at Idle
VOLUME
1
GROUP
Climate Control
NUMBER
004
MODEL
Sephia
DATE
October, 1998
SUBJECT:
Sephia Air Conditioner Evaporator Noise
This bulletin provides information related to a change in the Sephia A/C Expansion Valve. Some 1998/1999 Sephia models produced prior to 9/26/98
have had customer complaints of a rumbling noise coming from the evaporator area when the A/C is turned on. This noise is particularly noticeable when
the vehicle is at idle.
This noise condition is caused by A/C expansion valve. To correct this noise complaint, the design of the A/C expansion valve was changed. The new
A/C expansion valve is interchangeable with the previous expansion valve and should be used to correct noise complaints involving the A/C expansion
valve on vehicles produced prior to 9/26/98.
Required tools and Materials
Affected Production Range:
1998 and 1999 Sephia models with production dates up to 09/26/98.
Part Number Information
