Excessive A/C System Pressures (TIPS 0710-3)

Publication date: 2010-07-01
Reference number: TIPS 0710-3

EXCESSIVE A/C SYSTEM PRESSURES

TECHNICAL SERVICE BULLETIN

Reference Number(s): TIPS 0710-3, Date of Issue: July, 2010

SUBARU:	All
CATEGORY:	Subaru Tech TIPS 2010

SERVICE INFORMATION

If you experience a vehicle with excessive A/C system pressures, rule out these quick and easy checks before any component replacements. Verify that there are no obstructions to airflow through the condenser and/or radiator, and look in between them for debris which may be easily overlooked. In addition, make sure to confirm both the main and sub-fans are rotating in the proper direction and pulling air through the condenser and radiator toward the engine. If there were previous repairs that required removal of the fans, the wiring in the connectors may have become swapped during re-assembly, especially if the fan motor harness connectors didn't come apart easily. We have seen cases where this simple check was overlooked resulting in unnecessary repairs.

Thanks to Steve Trook, FSE, SDC for the TIP!