Low Temperature Cooling Rigid Pipe
| 1 - Quick Disconnect Fitting |
Before performing any diagnostic or service procedure, you must thoroughly read and follow all applicable high voltage safety procedures. You must perform the high voltage power down procedures.
Loss of Isolation (LOI) must be performed before high voltage power up in cases where service has been performed on a high-voltage component or when diagnosing a LOI condition.
Be sure to use the proper safety equipment when working on any high voltage system or component. Failure to do so may result in serious or fatal injury.
Wait a minimum of two minutes after performing the high voltage battery disconnect procedure before attempting to access the high voltage system. Failure to do so may result in serious or fatal injury.
Constant tension hose clamps are used on most cooling system hoses. When removing or installing, use only tools designed for servicing this type of clamp. Always wear safety glasses when servicing constant tension clamps.
A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.
Do not allow coolant to come in contact with any high voltage component electrical connections. Engine coolant will create a conductive path and cannot be effectively removed resulting in a loss of isolation and replacement of the contaminated high voltage component.
Using special tools (special tool #2035100082, Covers, HEV Battery Terminal) all high voltage connections must be covered.
Cap the cooling line quick-connect fittings when disconnected.
REMOVAL
- Drain the low temperature cooling system. Refer to DRAINING - LOW TEMP/BATTERY COOLING SYSTEM .
- Lower the subframe in order to provide clearance for the low temperature cooling rigid pipe removal. Refer to SUBFRAME, REMOVAL AND INSTALLATION .
- Reposition the battery coolant heater to provide clearance for the low temperature cooling rigid pipe removal. Refer to HEATERS, REMOVAL AND INSTALLATION .
- Release the four quick disconnect fittings and remove the fasteners from the front of the low temperature cooling rigid pipe.
1 - Fastener 2 - Low Temperature Cooling Rigid Pipe 3 - Quick Disconnect Fitting - Release the quick disconnect fittings and remove the fastener from the center of the low temperature cooling rigid pipe.
1 - Low Temperature Cooling Rigid Pipe 2 - Fastener 3 - Quick Disconnect Fitting - Release the quick disconnect fittings and remove the fasteners from the rear of the low temperature cooling rigid pipe.
1 - Quick Disconnect Fitting 2 - Low Temperature Cooling Rigid Pipe 3 - Fastener - Carefully remove the low temperature cooling rigid pipe from the vehicle.
INSTALLATION
Follow the removal procedure in reverse for general reassembly of the components on the vehicle. The steps listed below are calling out specific procedures that should be followed during installation.
- Refill the cooling system. Refer to FILLING - LOW TEMP/BATTERY COOLING SYSTEM .
- Check the cooling system for leaks. Refer to BATTERY COOLING, DIAGNOSIS AND TESTING .
- Power up the high voltage system after repair is completed. Refer to HIGH VOLTAGE POWER UP .