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Old 05-13-2006, 03:10 PM
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NissanTech NissanTech is offline
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2004 Xterra
Join Date: Jun 2005
Location: California
Age: 47
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1. Drain engine coolant from drain plugs on radiator.
2. Remove radiator hoses (upper and lower) and fan shroud.
3. Remove drive belts.
4. Remove pulley bracket.
5. Remove water inlet and thermostat assembly.

1. Check valve seating condition at ordinary temperatures. It should seat tightly.
2. Check valve opening temperature and valve lift.
3. Then check if valve is closed at 5C (9F) below valve opening temperature.

1. Install thermostat with jiggle valve or air bleeder at upper side.
2. When installing water inlet apply liquid gasket as shown.

After installation, run engine for a few minutes, and check for leaks.

Be careful not to spill coolant over engine compartment. Use a rag to absorb coolant.

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