Insufficient Cooling (Performance Test)

TROUBLE DIAGNOSIS PROCEDURE FOR INSUFFICIENT COOLING

Inspection Flow:

Inspection Flow (With Navigation System):

SYMPTOM:
* Insufficient cooling.

Performance Test Diagnosis Part 1:

Performance Test Diagnosis Part 2:

PERFORMANCE TEST DIAGNOSIS

Test Condition:

Recirculating-to-discharge Air Temperature Table:

Ambient Air Temperature-to-operating Pressure Table:

PERFORMANCE CHARTS

Both High- And Low-pressure Are Too High:

High-pressure Side Is Too High And Low-pressure Side Is Too Low:

High-pressure Side Is Too Low And Low-pressure Is Too High:

Both High- And Low-pressure Sides Are Too Low:

Low-pressure Side Sometimes Becomes Negative:

Low-pressure Side Becomes Negative:

TROUBLE DIAGNOSIS FOR ABNORMAL PRESSURE
Whenever system's high and/or low side pressure is abnormal, diagnose using a manifold gauge. The marker above the gauge scale in the tables indicates the standard (normal) pressure range. Since the standard (normal) pressure, however, differs from vehicle to vehicle, refer to ("Ambient air temperature-to-operating pressure table").