Question about 2004 Pontiac Grand Am

1 Answer

How to replace a thermostat in a 2004 pontiac grand am

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 548 Answers

You will need to drain the antifreeze, remove the radiator hose that mounts to the housing at the top of the engine block. Remove with a plastic scraper any remains of the old gasket, dry the area well and replace the thermostat and gasket in the same position that the old one was sitting in. (Notice which way the spring is sitting.)

Do not over-tighten the bolts that hold the housing down since the housing is pot metal that will crack if overstressed - notice how much effort it took to get them loose. Replace the hose, refill the antifreeze and you're done. If you can afford it, replace the hoses while you are at it if they are more than 3 -4 years old. Let the car idle until it gets to normal operating temp and check for any leaks.

Posted on May 30, 2010

  • tigerswin Jul 26, 2011

    The thermostat is located on the back side of engine behind cross over pipe. It is not as easy as 240cpa thinks. There is very little room but is accessable if you remove throttle body and air cleaner cover and hoses. Front bolt you can reach with a socket rear bolt you can only get with a wrench and maybe if lucky a 1/4 turn at a time. Good luck it is not an easy one.


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Will the temperature sending unit make my 2000 pontiac grand prix shut off

Don't think so... I had one 2004 prix that lost it's coolant and it ran until it destroyed itself... Had another that would hit red on temp during the summer in the desert mountains. Never shut down on me though.... replaced the radiator, water pump and thermostat. My fans kick on about 3/4 of the temp gauge. Normal temp is between 1/2 & 3/4.

Jun 24, 2014 | 2004 Pontiac Grand Prix

1 Answer

2004 Pontiac Grand Am 6cycl 3.4L, overheating issues.

Sounds like you had a sticking thermostat when you replaced the waterpump causing an air pocket. Replace the thermostat, and jack the front of the car so that the radiator cap is highest part of the cooling system. Then run the car and burp the air out of the coolant system.

Dec 26, 2013 | 2000 Pontiac Grand Am GT

1 Answer

What do I do after changeing the thermastat on a 2004 pontiac grand prix gt

For thermostat replacement step by step instructions with pics-

The pics as shown are for a GP model, but the GTP shares the same block so the thermostat is in the same place.

Your model year may require a gasket instead of an optional "o" ring. Buy one before you start and when you pull it apart, see if it has a gasket. -If so replace it, if not return the unused part.

Hope this helps. "G"

Car Tuning

May 24, 2012 | 2004 Pontiac Grand Prix

4 Answers

I need the location of the coolant sensor on a 2004 pontiac grand am 6 cylinder

It's here on the thermostat housing. Please let me know if you have more questions.


Dec 07, 2010 | 2004 Pontiac Grand Am

1 Answer

I have a 2004 Grand am gt and have noticed that the Temperature Gauge gets to Normal Temp and then slowly moves slightly (about two tick marks) to the right then it returns back to normal. It does this...

well not usally it sounds like the thermostat is sticking i had this promblem on my 01 grand am it was themostat sticking i fixed that by replacing thermostat it worked fine for a year then started to do it again finally noticed that my antifrezze was dirty and i needed a flush have you flushed or changed yours best bet flush the antifreeze then replace thermostat

May 05, 2010 | 2004 Pontiac Grand Am

1 Answer

How to change the thermostat on a 3.4L engine for the 2004 Pontiac Grand Am GT

You have to locate the big hose that comes off the radiator and follow it to where it goes into the the engine block. There will be 4 bolts on the flanged housing. The thermostat is in that housing.

Mar 09, 2010 | 2004 Pontiac Grand Am

1 Answer

Where is the thermostat located on a v6 pontiac grand am

thermostat is located below throttle body where upper rad hose connects..housing has 3 bolts..a little tricky to get at..behind exhaust crossover pipe

Apr 27, 2009 | 2004 Pontiac Grand Am

1 Answer

Engine light on, scan code said thermostat

93 grand cherokee limited signal lights don't work could u help me/

Feb 16, 2009 | 2004 Pontiac Grand Prix

1 Answer

Location of thermostat for a 2004 pontiac grand am.

follow the upper rad. hose from the rad. to the other end. It should be under the throttle body. I'm a certified Master Tec and these are not easy to do.

Dec 23, 2008 | 2004 Pontiac Grand Am

1 Answer

Thermostat location

On a GM six clinder it is in the housing that the upper radiator hose is hooked on the upper intake. It is very difficult to remove with the exhaust cross over pipe in the way but is possible with some time.

Dec 23, 2008 | 2004 Pontiac Grand Am

Not finding what you are looking for?
2004 Pontiac Grand Am Logo

3,382 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts


Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8140 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides