thermostat replacement replacement instructions please?

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

This video shows the job being done on a similar car but the process is the same.

https://youtu.be/jhXBAtcutQo

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

i find it much easier to remove the throttle body. when you do this, it is much easier to get to the housing bolts

Roy

Where can I find some Diagrams of a 2002 Buick Century Custom (V-6 Automatic) to help me switch the Thermostat out?

Here is a guide that will show you what you are in for when doing the job. https://www.2carpros.com/articles/replace-thermostat There are diagrams to show you wehat it like on your car there is more (below)

View from the other side

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

where is the thermostat on a 2002 buick century

Follow the upper radiator hose to the engine. It will lead you to the thermostat housing. Remove the housing and the T-stat is there. NOTE: Before doing the work, disconnect the battery and drain the coolant.

Here is a picture of it

I own a well-maintained 2003 Buick Century. Recently, the low coolant light came on. Flluid levels revealed no proplems. I then had my oil changed and the light came on intermittantly, but no signs of overheating, fluid leaks, etc. Last night the engine temp light came on. Guage was nearly pegged, but not completely. I revved up the engine and the engine immediately returned to normal temp, but the heater blew cool air. Could this be a thermostat problem, and if so, where is it located. I can't find it on top of the radiator or at the base of the water pump.

I'd start with a stat. The low coolant light is more likely a bad sensor level problem.

I Bought an AC Delco thermostat for my car. The factory thermostat appears to have a built-in factory o-ring that’s actually part of the thermostat. If I am correct I should not need a paper gasket or any sealant when I install this thermostat correct? Thanks

Are you talking about the rubber o-ring around the thermostat itself (pictured) or are you talking about the seal for the housing itself?

Either way, if it has a rubber o-ring then you do not need another gasket.

How to replace thermostat 3100 engine

see pics then pretty much reverse removal follow cooing system bleeding procedure after install

I need to know where to find the thermostat and how to replace it?

Here is a guide to help you see what you are in for when doing the job and the diagrams below will show you the location:

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

Check out the diagrams (below). Please let us know what happens. Cheers

I have locate where the thermostat goes, but I have noticed it is not in a very friendly place to get to, is there a trick or special way to get to this thermostat without knocking the hide off of your knuckles? Also, is there supposed to be a gasket with the new thermostat or is it the rubber gasket attached to it the only one?

Thanks in advance.

Tracy

Hard indeed to get to without removing the throttle body (it needed a good cleaning, anyway, right?). The throttle body will need a new gasket and sealant for the coolant connection. The thermostat needs only the rubber edge seal, I think. Be sure to place it right side up.

How do you remove a thermostat from a 1993 Buick Century 3.3 Do I need to remove the throttle body?

Hello,

Here is a guide that will show you what you are in for when doing the job.

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

Here is more information BELOW

Disconnect battery negative cable.
If necessary, remove air cleaner assembly.
With engine cool, drain engine coolant below thermostat level. Never open cooling system with engine hot.
Disconnect radiator hose from thermostat housing.
Remove thermostat housing retaining bolts, then the housing, gasket and thermostat.

Check out the diagrams (Below) both 4 and 6 cylinder engines.

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken

location of thermostat 3300

Refer to Fig. 16 when performing the following procedure.
1. Disconnect battery negative cable.
2. If necessary, remove air cleaner assembly.
3. With engine cool, drain engine coolant below thermostat level. Never open cooling system with engine hot.
4. Disconnect radiator hose from thermostat housing.
5. Remove thermostat housing retaining bolts, then the housing, gasket and thermostat.
6. Reverse procedure to install noting the following:
a. Ensure thermostat gasket area is thoroughly clean.
b. Install thermostat with new gasket.
c. Apply a suitable sealer to thermostat housing retaining bolts. Install and torque bolts to 20 ft. lbs.
d. Refill and bleed cooling system as necessary.

See the diagram below

I‘m having problems replacing the thermostat on my 2000 Buick Century.
I can’t remove the upper bolt on the Thermostat Housing; I don’t know if it’s frozen in place or, I just can’t reach it well enough to get a good grip on it (or both). There are two horizontal pipes in the way, one’s black and the other’s silver. I tried ‘liquid wrench’ on the bolt and gave it several good taps, but it won’t budge.
To access the bolt better, I tried to remove the Throttle Body. I removed the nut on the lower right side of the TB (in front of the small black plate that’s attached to the black pipe). However, I can’t seem to remove the stud bolt that comes from the Throttle Body and extends through the slot in the small black plate.
I’m wondering if I should try to remove the black and silver horizontal pipes that are blocking access to the upper bolt on the Thermostat Housing. If so, I’m not sure how; I can’t find any info on how to do it. By the way, the lower bolt on the TH also seems be frozen or, I can’t get enough leverage (or both). I would appreciate any advice that anyone can give me. THANKS!

Sorry for the late reply.

My info says to remove air pipe and exhaust cross-over pipe to get at thermostat housing. You would have to look at each end of pipe to see how to take loose.

Use a 6 point wrench or socket to remove bolt. You can use a cheater on rachet or wrench, just a long piece of pipe that will fit over tool, gives you more leverage. There are three things that can happen if you use a cheater, and two of them are bad.
1. the bolt comes loose.
2. You break the bolt, then you have to fish out the broken piece.
3. You strip out the threads, that's not hard to do, then you have to retap the hole and use different bolt.

I realize this is an old post, you probably no longer own this vehicle. In the future, hopefully, you don't have any vehicle issues, but, if you do, keep the site in mind. They are always working to make the site better and it's free.

Have a good day.

3.3 v6 thermostat removal

Fig. 16 Thermostat & Housing Assembly

Refer to Fig. 16 when performing the following procedure. 1.Disconnect battery negative cable. 2.If necessary, remove air cleaner assembly. 3.With engine cool, drain engine coolant below thermostat level. Never open cooling system with engine hot. 4.Disconnect radiator hose from thermostat housing. 5.Remove thermostat housing retaining bolts, then the housing, gasket and thermostat. 6.Reverse procedure to install noting the following: a.Ensure thermostat gasket area is thoroughly clean. b.Install thermostat with new gasket. c.Apply a suitable sealer to thermostat housing retaining bolts. Install and torque bolts to 20 ft. lbs. d.Refill and bleed cooling system as necessary. https://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm

Replacing the housing is the easy part. Removing all the crap to get to the housing is the challenging part where help is needed.