A/C - Poor Performance
Information IB03-12-S001Diagnosis Poor A/C Performance A/C Stops Blowing Cold A/C Cycles ON and OFF
ISSUE DATE: JULY, 2003
Affected Vehicles
2003 Isuzu Ascender (US) with automatic or manual HVAC auxiliary temperature control (RPO CJ2 or CJ3).
Service Information
Some vehicles may exhibit poor A/C performance due to an overcharged system. If the A/C system is overcharged, it may cause the A/C to stop blowing cold after extended idle or while driving in slow traffic at high ambient temperatures.
It has been found that the underhood label containing the A/C charge specification is incorrect.
The correct specification should read System Charge with Front and Rear -1.20 kg (2.65 lbs).
Use this new charge specification whenever the A/C system is serviced. Install new label, P/N 8-15103-173-0.