A/C Clutch Cycling Pressure Switch - Service Tip

Article No.
97-8-7

04/14/97

AIR CONDITIONING - A/C CLUTCH CYCLING PRESSURE SWITCH READINGS - SERVICE TIP - VEHICLES BUILT THROUGH 7/97

FORD:
1997 CROWN VICTORIA, ESCORT, MUSTANG, TAURUS

LINCOLN-MERCURY:
1997 CONTINENTAL, GRAND MARQUIS, SABLE, TOWN CAR, TRACER

LIGHT TRUCK:
1997 VILLAGER

ISSUE:
A/C cycling pressure switch readings during clutch disengagement (clutch off) may read as high as 27 psig for a properly operating switch with a normal calibration of 22-24 psig during clutch disengagement. This may be caused by pressure reading being taken from a low side service charge port that is not adjacent (within 177.8 mm/7") of the A/C cycling switch. A pressure drop in the A/C line results in high readings.

ACTION:
If the above condition is present, do not misdiagnose the A/C cycling pressure switch as faulty. The pressure readings above are considered normal. Perform normal diagnosis as outlined in the appropriate model 1997 Service Manual.

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: INFORMATION ONLY

OASIS CODES: 208200