1998 Ford Explorer

Tiny
RHB4BII
  • MEMBER
  • 1998 FORD EXPLORER
1998 Ford Explorer

How do I change the thermostat housing on my 1998 Ford Explorer?
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Saturday, May 1st, 2010 AT 3:25 PM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
1. Drain the cooling system.

2. Disconnect the battery ground.

3. Remove the air cleaner duct assembly.

4. Remove the upper radiator hose.

To remove the thermostat, first remove the upper radiator hose, then the three attaching screws

Pull the thermostat housing from the intake manifold then remove the thermostat. I recommend replacing it at the same time

Ensure that the sealing ring is properly seated. Install the thermostat with the release valve facing upwards

5. Remove the 3 thermostat housing attaching bolts.
6. Remove the thermostat housing. You may have to tap it loose with a plastic mallet or your hand.
7. Pull the thermostat from the intake manifold.

To install:

WARNING
Do not use a sharp metal tool for scraping. Damage to the sealing surfaces could result and cause a leak.

8. Clean all mating surfaces thoroughly.
9. Make sure that the sealing ring is properly installed on the thermostat rim. Position the thermostat in the housing making sure that the air release valve is in the up (12 o'clock) position.
10. Coat the mating surfaces of the housing and engine with an adhesive type sealer. Position the new gasket on the thermostat and place the housing on the engine. Tighten the bolts to specification.

Let me know if this helps. I was able to find the directions for t-stat replacement. If you don't want to replace the t-stat because yours is good, just replace the housing.

Joe
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Saturday, May 8th, 2010 AT 10:53 PM

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