Be sure the vehicle is on level ground and engine "OFF" after warming up.
Check for coolant level in the coolant reservoir (radiator), gravity and contamination of the coolant after cooling down.
Is coolant level is normal?
 | ▶ Check for coolant gravity. ▶ Go to "Cooling fan inspection" procedure. ▶ Go to "Spark plug inspection" procedure. ▶ Go to "Alternator inspection" procedure. |
 | ▶ Refill or replace coolant after adjusting coolant gravity. ▶ If coolant level is low, Check/repair for coolant leakage. ▶ There is contamination/corrosion in the coolant, Check/replace for causes. |
Coolant temperature and specific gravity | Freezing point | Safety operation temperature | Mixture percentage (Antifreeze, %) | ||||
10℃(50℉) | 20℃(68℉) | 30℃(86℉) | 40℃(104℉) | 50℃(122℉) | |||
1.054 | 1.050 | 1.046 | 1.042 | 1.036 | -16℃(3.2℉) | -11℃(12.2℉) | 30 |
1.063 | 1.058 | 1.054 | 1.049 | 1.044 | -20℃(-4℉) | -15℃(5℉) | 35 |
1.071 | 1.067 | 1.062 | 1.057 | 1.052 | -25℃(-13℉) | -20℃(-4℉) | 40 |
1.079 | 1.074 | 1.069 | 1.064 | 1.058 | -30℃(-22℉) | -25℃(-13℉) | 45 |
1.087 | 1.082 | 1.076 | 1.070 | 1.064 | -32.8℃(-27.04℉) | -31℃(-23.8℉) | 50 |
1.095 | 1.090 | 1.084 | 1.077 | 1.070 | -43.6℃(-46.48℉) | -37℃(-34.6℉) | 55 |
1.103 | 1.098 | 1.092 | 1.084 | 1.076 | -58℃(-72.4℉) | -45℃(-56.2℉) | 60 |
