How to replace radiator thermostat ’02-’06 Nissan Altima √

How to replace radiator thermostat ’02-’06 Nissan Altima √

2002 2003 2004 2005 2006 Nissan Altima 2.5L 4 cylinder

2004 Nissan Altima
Replacing the radiator, it had a slow leak at the top, where it was crimped.
It is always recommended to replace the thermostat when you are replacing the radiator.

The information contained in this video is for general guidance, not responsible for any errors or injuries that you have done. Samsung W200 pocket camcorder was used to do this video.
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Andrew Theissen says:

Forgot to change 2nd thermostat beside upper CAT conv'.

Johnny Chapman says:

Well that was not to Smart ? He looked at the Instruction and still put the one in the Back side of the Motor in Backwards ? Watch the video and when it comes to the Instruction Pause it and look at the Instructions and you will see for yourself after looking at the instruction he still did it wrong and then watching the rest of the video you will see it.
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All my life I have ben told the Spring has to go Inside the Motor for it to work Correctly and it is true because today I did the same job on a 2011 Nissan Altima 2.5 s that was OVER HEATING and it was because of what he did ? The Back side of the Motor had the Thermostat in BACKWARDS, Now the job has ben done right the Car is Running in the Normal Heat Range and NO PROBLEMS but before I did the change I did Read the Instructions and I called my local Nissan Dealer and ask them to DOULBLE CHECK IT, This way I would do it Correct the First time just in case on this car they made a change for it to go in backwards and NO it was done wrong by the last person so Choose Wisely as to you get to do your work..

chicearth ski says:

thanks that truly helped

Frank Lopez says:

When replacing a thermostat the spring and wax bronze cylinder sensor goes on the side of the motor and the pointy peak points towards the radiator. The wax bronze cylinder sensor of the thermostat is what senses the hot motor water and expands and opens the thermostat. See the link https://goo.gl/images/7evGqo

If you don't do it like this you may be ok on normal days. But on a hot rides after you park with a hot engine the internal engine heat keeps raising the water temperature, even while stopped. The incorrect spring position and wax sensor will not activate as intended. It will remain closed and cause a build up of pressure. It could further weaken weak gaskets and other parts such as the water pump shaft gasket and start causing leaks as time goes on. Eventually something will give, a head gasket or any other gasket. It takes time, but it will eventually happen on a hot day. In this video it shows how a previous mechanic incorrectly replaced the thermostat yet the new part was again replaced incorrectly. The problem was not resolved. The problem of over heating will reoccur eventually within a year in normal climate and sooner in hotter climates. New thermostats now come with instructions because apparently videos like this propagate incorrect assumptions. Don't assume. Use better judgement and check professional documentation, references and instructions. Anyone that replaced their thermostat in the reversed order is in for a big surprise on a hot exerted ride day once you park your car and restart it. You won't blow a hose, but you may blow a gasket or spring a leak somewhere within the motor. Good luck and for your safety, redo your work if you reversed the thermostat.

Koda Bing says:

the spring goes away from engine block on the top thermostat? is that right?

Echo Footman says:

Is it pretty much the same on a 3.5. I need to replace my thermostat and want to do it myself

Victor Nunez says:

if u can reply please… the second thermostat should be placed with the springside outward away from block right?

William Galway says:

Nice Job!!! Wish my 04' was that clean and rust free!! After seeing how rust free that car is I wonder if its even worth the effort to replace the leaking cooling gear on my Altima.

Oteb Oteb says:

u put the upper thermostat wrong,goes the other way.

TexasTitan says:

this is so helpful, I just recently had my head gasket blow and the radiator just blew up and I'm having to replace everything, this was so helpful

Pedro cruz says:

im working on the car now, auto zone manual toll different. akin auto zone, let me now

Pedro cruz says:

term #2 wrong way

Marcus Blanco says:

thanks a lot man! besides 2 bolts being stripped on the thermostat housing, the light went off, the car doesn't overheat, and the heater is back!

Russell Martin says:

Thanks for the help. I started with the lower thermostat first, Nissan part 21200 for $25 from Nissan, since it's easier. Hopefully the P0128 code stops coming back.

fmorelli says:

This is one of the best repair videos I've seen. Very well done – clear, concise, fast, slows in all the right places. Tips done well. Bravo!

Daniel Deal says:

if I'm just replacing the thermostats do I have to remove the radiator?

Raul Perero says:

excellent thank YOU

Robert Krous says:

Best video out there. Thanks Brotha.

Jerry Brewer says:

Garbage autozone parts

THE FOXX says:

he was putting everything brand new "

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