QX4 2WD V6-3.5L (VQ35DE) (2003)
Oil Cooler: Service and Repair
OIL COOLER
Removal And Installation
1. Disconnect water hoses from oil cooler, pinching hose to prevent coolant spill.
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Do not spill coolant on the drive belt.
2. Remove oil cooler.
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Inspect the oil cooler after removing it.
3. Installation is in reverse order of removal.
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When installing the oil cooler, align the oil cooler stopper with the stopper of the oil cooler bracket.
Inspection
Oil Cooler
1. Check oil cooler for cracks.
2. Check oil cooler for clogging by blowing through coolant inlet.
If necessary, replace oil cooler assembly.
Oil Pressure Relief Valve
Inspect oil pressure relief valve for movement, cracks and breaks by pushing the ball. If replacement is necessary, remove valve by prying it out with a
suitable tool. Install a new valve in place by tapping it.