Loss of Coolant 3.5L V6 LX5
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Check for a leaking radiator. Refer to Cooling System Leak Testing . Is the radiator leaking? | -- | ||
2 | Repair or install new parts as necessary. Is the repair complete? | -- | System OK | -- |
3 | Check for a leaking heater core. Refer to Cooling System Leak Testing . Is the heater core leaking? | -- | ||
4 | Check for a faulty surge pressure cap. Is the cap operating properly? | -- | ||
5 | Check for a leaking surge tank hose(s), a cracked surge tank or a nicked surge tank neck. Refer to Radiator Surge Tank Replacement . Is the reservoir or the hose leaking? | -- | ||
6 | Check for any loose or damaged hoses and connections. Are any hoses damaged or are any hose connections leaking? | -- | ||
7 | Check for a cracked thermostat housing or a leaking thermostat seal. Refer to Engine Coolant Thermostat Replacement . Is the thermostat housing cracked or is there a seal leak? | -- | ||
8 | Check for a cracked water pump or a leaking water pump gasket. Is the water pump cracked or is there a leaking gasket? | -- | ||
9 | Check for a cracked water pump shaft seal. Is the water pump shaft seal leaking? | -- | ||
10 | Replace the water pump. Refer to Water Pump Replacement . | -- | System OK | |
11 | Check for a leaking engine block coolant drain hole plug or knock sensor. Are any drain hole plugs or knock sensors leaking? | -- | ||
12 | Check for any leaking cylinder head core plugs. Are the cylinder head core plugs leaking? | -- | ||
13 | Check 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? | -- | ||
14 | Check for a cracked throttle body or a gasket leak. Is the throttle body cracked or is there a gasket leak? | -- | ||
15 | Check for a cracked cylinder block. Refer to Engine Replacement . Is the cylinder block cracked? | -- | ||
16 | Check for any porous castings. Are the castings OK? | -- | System OK | -- |
Loss of Coolant 3800 V6 L36
Step | Action | Value | Yes | No |
|---|---|---|---|---|
1 | Check for an incorrect or faulty radiator filler cap. Refer to Pressure Cap Testing . Was an incorrect cap installed, or is the cap faulty? | -- | ||
2 | Replace the filler cap. Is there still a coolant loss? | 103 kPa (15 psi) | System OK | |
3 | Check for a leaking coolant recovery reservoir or reservoir hose. Is the coolant recovery reservoir leaking, or is the reservoir hose leaking? | -- | ||
4 | Replace the reservoir or the hose. Refer to Coolant Recovery Reservoir Replacement . Is there still a loss of coolant? | -- | System OK | |
5 | Check for any loose or damaged radiator hoses and connections. Are any radiator hoses loose or damaged? | -- | ||
6 | Re-seat the hoses and clamps. If necessary, replace the hoses and the clamps. Refer to Radiator Inlet Hose Replacement or Radiator Outlet Hose Replacement . Is there still a coolant loss? | -- | System OK | |
7 | Check for a water pump gasket leak. Is there a leak at the water pump gasket? | -- | ||
8 | Replace the water pump gasket. Refer to Water Pump Replacement . Is there still a coolant loss? | -- | System OK | |
9 | Check for a seal leak at the water pump. Is there a leak at the water pump seal? | -- | ||
10 | Replace the water pump. Refer to Water Pump Replacement . Is there still a coolant loss? | -- | System OK | |
11 | Check if the cylinder head bolts are tightened to specification. Are the cylinder head bolts tightened to the proper specification? | -- | ||
12 | Tighten the cylinder head bolts to the proper specification. If necessary, replace the cylinder head gasket. Is there still a coolant loss? | -- | System OK | |
13 | Check for any coolant leaks at the radiator. Refer to Cooling System Leak Testing . Does the radiator have any leaks? | -- | ||
14 |
Refer to Radiator Replacement . Is there still a coolant loss? | -- | System OK | |
15 | Check the following for leaks:
Are any leaks occurring at any of these places? | -- | System OK | |
16 | Make the necessary repairs or replace the components as necessary in order to repair the leak. Is there still a coolant loss? | -- | -- | System OK |
