A/C - Unnecessary Compressor Replacement Update
XL-7Section Title: HVAC
TSB No. TS06 10224
Division: Automotive
Category: Technical
SUBJECT:
UNNECESSARY COMPRESSOR REPLACEMENT DUE TO NOISE SERVICE MANUAL UPDATE
MODEL(S):
XL-7
YEAR:
2003-2005
CONDITION:
A noise that can be described as a hum, whine or groan can be heard whenever the A/C is on and compressor is operating which goes away when the A/C is turned off.
CAUSE:
To satisfy the A/C requirements of the large passenger area in the XL-7 the A/C compressor displacement was increased. This increase in displacement has resulted in a normal increase in operating noise which may be noticeable inside the vehicle.
CORRECTION:
Do not replace the compressor without a complete diagnosis. Most noises heard inside the vehicle are not caused by compressor failure. Follow the "Abnormal Noise Diagnosis" chart in the appropriate Service Manual and Section in conjunction with the Service Manual Update.
AFFECTED SERVICE MANUAL(S):
Abnormal Noise Diagnosis
There are various types of noise, ranging from those produced in the engine compartment to those from the passenger compartment, also from rumbling noises to whistling noises.
Abnormal Noise from Compressor
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