Step | Action | Value | Yes | No |
|---|---|---|---|---|
1 |
Is the coolant visible on the ground? | -- | ||
2 | Check the cooling system for proper pressure retention. Refer to Cooling System Leak Testing . Does the cooling system maintain the correct pressure? | 103 kPa (15 psi) | ||
3 | Check for a leaking radiator. Does the radiator leak? | -- | ||
4 | Repair or replace the radiator. Refer to Radiator Replacement . Is there still a loss of coolant? | -- | System OK | |
5 | Check for a leaking coolant recovery reservior tank or hose. Is there a leak in the reservoir, or is the reservoir hose damaged? | -- | ||
6 | Replace the coolant recovery tank or hose. Refer to Coolant Recovery Reservoir Replacement . Is there still a loss of coolant? | -- | System OK | |
7 | Check for any loose or damaged radiator hoses and connections. Are any radiator hoses or hose connections damaged? | -- | ||
8 |
Is there still a loss of coolant? | -- | System OK | |
9 | Check for a water pump gasket leak. Is there a leak at the water pump gasket? | -- | ||
10 | Replace the water pump gasket. Refer to Water Pump Replacement . Is there still a loss of coolant? | -- | System OK | |
11 | Check for a water pump seal leak. Is there a leak at the water pump seal? | -- | ||
12 | Replace the water pump. Refer to Water Pump Replacement . Is there still a loss of coolant? | -- | System OK | |
13 | Check the radiator filler cap. Refer to Cooling System Leak Testing . Is the radiator filler cap damaged? | -- | ||
14 | Replace the radiator filler cap. Refer to Pressure Cap Description . Is there still a loss of coolant? | -- | System OK | |
15 | Check the cylinder head gasket for leaks. Refer to Cooling System Leak Testing . Is the cylinder head gasket leaking? | -- | ||
16 | Replace the cylinder head gasket. Refer to Cylinder Head Replacement in Engine Mechanical. Is there still a loss of coolant? | -- | System OK | |
17 | Inspect the cylinder head and cylinder block. Is the cylinder head or cylinder block cracked? | -- | ||
18 | Replace or resurface the cylinder head or cylinder block as necessary. Refer to Cylinder Head Replacement in Engine Mechanical. Refer to Engine Block Clean and Inspect in Engine Mechanical. Is there still a loss of coolant? | -- | System OK | |
19 | Check for a leaking heater core. Is the heater core leaking? | -- | System OK | |
20 | Replace the heater core. Refer to Heater Core Replacement in HVAC. Is there still a loss of coolant? | -- | -- | System OK |
