Best Answer

Try looking at the lower radiator hose. It should end up somewhere on the block. In any normal car, that is where the thermostat housing is located. my guess is there are two bolts on either side of the T.H., and a red, blue, or black ring that runs along the base, which is a silicone gasket. remove the bolts and pry the housing from the block (be careful). the thermostat should be seated inside the housing. when you install it make sure its pointed in the right direction.

Slightly more precise answer....The thermostat housing is on top of the engine at the transmission end. The thing you're looking for is silver and has one radiator hose, two sensors and a bolt with a hole in the middle of it (the bleeder bolt) sticking out of it. The left end of this assembly is held in with two bolts, like the first responder said. Use a 12mm wrench to loosen the bleeder bolt, then use a 10mm socket to remove the two retaining bolts. Pull the assembly (we'll call it a cup) away and you'll find the thermostat in the piece that's in your hand. Look at how the thermostat's sitting in the cup, then remove it.

Put the gasket on your new thermostat, and set it in the cup the way the old one was in there. There's a pin on one side of the thermostat, and it should be at the top. Put the cup back in its mount, thread in the bolts and tighten them to 9 lb-ft, or 108 in-lb if you've got a 1/4" drive torque wrench.

Now remove the radiator cap and pour some coolant in there. Use either "all makes all models" coolant or Honda Genuine coolant--nothing else. When coolant comes out of the bleeder bolt, tighten it and replace the radiator cap.

User Avatar

Wiki User

โˆ™ 2015-07-15 19:04:52
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: How do you replace the thermostat located on a 1998 Honda Prelude?
Write your answer...
Still have questions?
magnify glass
Related questions

Where is the coolant temperature sensor located on a 1991 Honda prelude Si?

one is located at the thermostat housing. the other is in the bottom of the radiator.

How do you replace thermostat on Honda Civic?

how do you replace thermostat on 1994 Honda civic dx

Where is the computer located on a Honda Prelude?

I have an 88 Honda prelude and my computer is located under the carpet on the passenger side.

How do you put in the fuel pump in the Honda Prelude 1992?

How do you replace the fuel pump Honda prelude 1992

Where is the thermostat located on a 1992 Honda Prelude Si H23?

It is located on the top radiator line where it connects to the block. There should be 2 bolts that secure it to the block.

Where is the fuel pump relay located in a 1988 Honda prelude?

where is the fuel pump cutoff relay located in a honda 88 prelude?

Where is the thermostat located on a 1991 Honda Prelude?

look for the upper radiator hose and fallow it back to the engine there you will see the water neck unbolt that and it will be right there.

Where is the thermostat located on a 1995 Honda Civic Dx?

where is a thermostat located on a 1995 Honda civic ex?

Where is the thermostat located on a 2002 Honda Accord lx?

Where is the thermostat located on a 2002 Honda accord LX

Where is the dianostic port on 1998 Honda Prelude?

What is the eaziest way to replace an altanator on a 1998 Prelude SH?

How much is it to replace head gasket Honda prelude 1998?

How much is it to replace thehead gasket on a honda accord 1998?

1990 Honda Prelude water-pump removal?

show me picture of where the water pump is located on 1991 Honda prelude si

People also asked