Step | Action | Yes | No |
---|---|---|---|
1 | Inspect for a leaking radiator. Is the radiator leaking? | Go to Step 2 | Go to Step 3 |
2 | Repair or install new parts as necessary. Is the repair complete? | System OK | -- |
3 | Inspect for a leaking heater core. Is the heater core leaking? | Go to Step 2 | Go to Step 4 |
4 | Inspect for a faulty radiator surge tank cap. Is the cap operating properly? | Go to Step 5 | Go to Step 2 |
5 | Inspect for a leaking coolant recovery hose or a cracked surge tank. Is the surge tank or the hose leaking? | Go to Step 2 | Go to Step 6 |
6 | Inspect for any loose or damaged hoses or connections. Are any hoses damaged or are any hose connections leaking? | Go to Step 2 | Go to Step 7 |
7 | Inspect for a cracked thermostat housing or a leaking thermostat seal. Is the thermostat housing cracked or is there a seal leak? | Go to Step 2 | Go to Step 8 |
8 | Inspect for a cracked water pump or a leaking water pump gasket. Is the water pump cracked or is there a leaking gasket? | Go to Step 2 | Go to Step 9 |
9 | Inspect for a leaking water pump driveshaft seal. Is the water pump shaft seal leaking? | Go to Step 10 | Go to Step 11 |
10 | Replace the water pump. Refer to Water Pump Replacement . Is the repair complete? | System OK | Go to Step 11 |
11 | Inspect for a leaking engine block coolant drain hole plug. Are any drain hole plugs leaking? | Go to Step 2 | Go to Step 12 |
12 | Inspect for any leaking cylinder head core plugs. Are the cylinder head core plugs leaking? | Go to Step 2 | Go to Step 13 |
13 | Inspect for a leaking cylinder head gasket(s), vent(s) or a cracked cylinder head(s). Is the cylinder head gasket leaking or is the cylinder head cracked? | Go to Step 2 | Go to Step 14 |
14 | Inspect for a cracked throttle body or a gasket leak. Is the throttle body cracked or is there a gasket leak? | Go to Step 2 | Go to Step 15 |
15 | Inspect for a cracked cylinder block. Is the cylinder block cracked? | Go to Step 2 | Go to Step 16 |
16 | Inspect for any porous castings. Are the castings OK? | System OK | -- |