thermostat location for replacement?

Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/replace-thermostat

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Tested the thermostat in a pot of boiling water (my Mom showed me how) and it opens so that seems alright. The coolant is boiling over therefore I'm having to add coolant whenever the vehicle overheats. Thing drives me nuts, I can drive over a 1000 miles in one day and nothing but the next day I can be sitting in drive-thru and it over heats. I have not replaced the Coolant Temp Sensor, but I'm not familar as to where it is.
Thank you!

I know where the thermostat goes an the gasket. My question is where it bolts to behind that is there a gasket that goes there? there is a small opening behind that mount an i'm thinking a gasket there?
you have the water neck then thermostat then gasket then that bolts to another part. hope that helps explain.

Take a look at this exploded view and tell me where you are seeing this other potential gasket.

I am just not sure exactly where you are seeing this. Thanks

Hello, I'm Danny.

The thermostat in your car is sealed with a rubber o-ring, not a gasket. Here is a tutorial for you to view on how to change:

https://www.2carpros.com/articles/replace-thermostat

I've also attached picture step instructions below for your car. Hope this helps and thanks for using 2CarPros.

It's not the o-ring seal it's the thermostat housing parr the back side where it bolts onto that. i need to know if there is a gasket. I will try an take a pic.
All those parts in the pic bolt onto another part that's the area i'm needing to know. I will try take a picture.

Hello again.

I've attached a picture from my prior post and circled an area in red.Is this what you are speaking of? Let me know.Hope this helps and thanks again for using 2CarPros.

Danny-

Does not look like mine, not sure. But yes behind that housing has a opening. I will get pic to make sure and show it.

Hello again.

Okay, use your cell phone to take a picture and upload here.We will get back to you when we receive.Thanks again for using 2CarPros.

Danny-

No problem, thanks.

Okay, got picture. It bolts to the side of where EGR valve sits.

Hello again.

Okay, just to be on the same page I've attached your picture below.Where I've circled in red are you asking if there is a gasket or o-ring? Let us know and we'll get back to you.Thanks again for using 2CarPros.

Danny-

Yes, that's the spot.

Hello again.

It shows the thermostat housing as using an o-ring to seal. I've attached a picture below as to what it looks like.Hope this helps and thanks again for using 2CarPros.

Danny-

This one is used for the thermostat seal an not for the seal to the side of EGR valve?
Will check auto parts store an see if they have picture as well. thanks

Hello again.

That is the o-ring that goes from the thermostat housing to the EGR. The o-ring for the actual thermostat is completely round.Let me know if you have any further questions on this issue.Hope this helps and thanks for using 2CarPros.

Danny-

What is the gasket if any to go between the EGR an the housing?

Hello again.

Both the thermostat and thermostat housing both use o-ring type gaskets.The thermostat o-ring that bolts to the head-EGR assembly which you are asking about is Honda part number-91312-P0A-000. Hope this helps and thanks again for using 2CarPros.

Danny-

Okay, thanks. I will check with parts store an see what i can come up with.
Thank you

So i have two gaskets as a o-ring one dor thermostat and then one behind to bolt to EGR valve side?

Hello again,

Yes, that it correct. You will have 1 o-ring to use with the actual thermostat and a separate 2nd o-ring to mount the thermostat housing to the EGR valve side.Hope this helps and thanks again for using 2CarPros.

Danny-

Ah, okay good.
Now trying to get balancer off but compressor not enough, lol.

Hello again.

Glad to help. When you ask begin to ask about other components that are not related then we have to ask you to start a new question. This is in reference to you mentioning the balancer. Be sure to again include all your vehicle information. Here is the link:

https://www.2carpros.com/questions/new

Hope this helps and thanks again for using 2CarPros.

Danny-

had bad radiator and we need to change the thermostat.

2001 Honda Accord mileage: 55,000. I need to replace the thermostat and I want to know the difference between them. You can purchase 170 degree, 180 degree, and 192-degree thermostats. What is the difference between these, and which one is the best for my car. I drive my car only in the summer months.

The difference in the thermostats is the temperature at which they open allowing coolant to flow into the radiator. We would suggest installing a 192° thermostat because that is the original factory specification. This is necessary for all of your computer engine management systems to work properly.

Where is the engine thermostat located.

Hi Larryyon,

Thermostat is located in housing at left of engine. It is connected by the lower radiator hose.

Is it easy to replace the themostat ? 1999 Honda Accord

Larry Yon

Hi Larry,

Yes, replacement is rather easy but after replacement, you must bleed the system of air locks.

Disconnect battery negative terminal.
Drain coolant from radiator by releasing the drain plug below the radiator.
Use plier to pull the lower radiator hose clamp on thermostat housing away from locked position.
Twist the hose gently and when it becomes loose, pull it out of housing.
Remove the bolt holding the ground wires. When installing, ensure this ground is secured well, failing which you would not be able to start vehicle.
Remove 2 bolts holding the thermostat housing.
Tap the housing gently and it will come off easily.
Remove the thermostat.

When installing, note the seating position of the gasket and thermostat.

After installation, loosen bleeder nut 2 - 3 turns on thermostat housing.
Turn on heater and set to maximum heat.
Fill coolant at radiator filler neck till no bubbles come out of the bleeder nut.
Tighten bleeder nut.
Fill coolant till radiator is full.
Start engine and when filler neck coolant level drops, top up with coolant.
Continue doing so till the level does not drop.

Once coolant level stabilises, and engine has heated up, close radiator cap.

Run engine and remember to check reservoir coolant level.

Wait for engine to cool down befor erechecking coolant level.
Top up if necessary.
Done.

Recently my car has been over heating after just going short distances. Yesterday I flushed out the radiator and add new coolant in the car. Today I was Coming home for work(about 2miles) so the car really didnt even have time to heat up. But the was reading that it was overheating. I didnt notice any leaks when i add new coolant or when I whent to my car this morning. Could this be the thermostat if so is it a easy fix? If so were is it located for I can change it myself. I learning to repair my own car to save money.

yes the thermostat could be stuck. to find it. follow the hose comming off of the upper radiator to the engine, where it stops that is the thermostat housing. you have to go inside there to remove it. if that doesnt work. your engine coolant temperature sensor is your next step.That is: Under hood, center, upper engine area, passenger side of engine block, mounted near distributor. And make sure that you bleed the system.

where is the thermostat

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.