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how to replace thermostat in 97 mercury tracer ls


top radiator hos attaches to

top radiator hos attaches to the thermostat housing on the engine. remove some coolant and the 2 bolts holding the housing - replace the thermostat just as it came out. look on autozone.com for step by step info with pics - just register on the site and add car info - go to repairs.

2.0L Engine SOHC ENGINE

2.0L Engine

SOHC ENGINE

1.Disconnect the negative battery cable.
2.Remove the air cleaner outlet tube.

CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

3.Drain the cooling system until the level is below the thermostat.
4.Unplug the coolant temperature sender and coolant temperature sensor electrical connections.
5.Disconnect the upper radiator hose and heater coolant hose from the thermostat housing.
6.Unfasten the thermostat housing bolts.
7.Remove the thermostat housing and the thermostat.
8.Clean the gasket surfaces thoroughly until all traces of the old gasket residue are removed.

Make sure the tabs on the thermostat engage properly into the slots in the housing.

To install:

9.Install the thermostat in the housing making sure the tabs engage.
10.Install any new gasket required.
11.Install the thermostat, housing and bolts. Tighten the bolts to 8-12 ft lbs. (10-16 Nm).
12.Connect the upper radiator hose and heater coolant hose to the thermostat housing.
13.Attach the coolant temperature sender and coolant temperature sensor electrical connections.
14.Fill the cooling system.
15.Install the air cleaner outlet tube.
16.Connect the negative battery cable.
17.Start the car and check for leaks.

DOHC ENGINE

1.Disconnect the negative battery cable.

CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
2.Drain the cooling system until the level is below the thermostat.
3.Unplug the Camshaft Position (CMP) sensor electrical connection.
4.Unfasten the water hose connection retaining bolts and move the connection aside.
5.Remove the thermostat and seal from the housing.
To install:

6.Inspect the seal and replace it if damaged.
7.Install the thermostat and seal in the housing.
8.Install the water hose connection and bolts. Tighten the bolts to 71-97 inch lbs. (8-11 Nm).
9.Attach the Camshaft Position (CMP) sensor electrical connection.
10.Fill the cooling system.
11.Start the car and check for leaks.

The recommended coolant for

The recommended coolant for all vehicles covered by this guide is a 50/50 mixture of ethylene glycol and water for year-round use. Choose an aluminum compatible, good quality antifreeze with water pump lubricants, rust inhibitors and other corrosion inhibitors, along with acid neutralizers

when bleeding the air from

when bleeding the air from the system besure and turn the heater selector to it highest position

when bleeding the air from

when bleeding the air from the system besure and turn the heater selector to it highest position

when bleeding the air from

when bleeding the air from the system besure and turn the heater selector to it highest position


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