2005 nissan altima 2.5L thermostat and water control valve replacement

2002-2006 nissan altima 2.5L thermostat and water control valve replacement

[@mikedv7954]

I compared this video and others with the same task and I must say you did good by positioning the camera in the right spot. Good job!

[@davep857]

Great Video. I'm an experienced DIY car mechanic and appriciate a straight forward, clean how-to video. Thanks for the great posting video!

[@kickthagreat9352]

Thanks so much for past 2 years I keep changing the one on side engine I didnt know it was a 2nd.

[@guesswho2237]

I seen a lot of people pull the heater core pipe off but I liked how you just loosened it so u could move it just a lil without pulling it off

[@iancumbers494]

great job mate you saved me alot of money mechanic charges 250 dollars for same thing .cheers ..

[@ramonnavarro9752]

Going to do hoses and the mishimoto install, and needed a refresher, you sir are awesome!

[@1jonrd]

Just watched your Vedio twice and it worked out pretty good on my Nissan Altima 04. Thanks for the tip.

[@timferguson1526]

Great demonstration of how to do this, thanks!

[@victorrios633]

Thans a lot for your great video, is a good thermostat replacement

[@kmclen1565]

I almost gave up when you whispered "oh shit"!

[@MrMaxwell0101]

Nice clean work good video

[@shellcollins3688]

Thanks man cause I put on a new water valve with out putting a new water gasket thing and also I didn't no about the other water valve thing thanks now I'ma take everything back off

[@MrGilreyna]

Control valve,whats the right side,I used the other side ?.?

[@craftpaint1644]

Taking off the manifold heat shield makes removing the engine block thermostat easy. I needed a breaker bar to loosen several bolts - talk about star torqued (tightening till you see stars). The grey heater core pipe took some patience getting pulled off also. I had drained about a gallon of coolant (I call it coolant, it looked like swamp water) still splashed some taking off the hose. The bottom bolt on the hose group component was a bitch to get out but went back a lot faster. All in all this isn't an all morning job, an hour or hour and a half if it's a battle. Replaced the coolant with Peak International. If you're changing the oil too, the pan is on the passenger side, 14mm plug, 4.5 quarts of 5w 30 if putting on a new filter. I've read it's 4 quarts if not replacing the filter.

[@rafaelalvarado9484]

R

[@Mikeb-tx4cd]

Great video, did you use sealer, gasket or both on the water control valve housing?

[@jonathangutierrez1759]

Bro the upper thermostat on this video has already been replaced and installed backwards. The original upper thermostat installation by Nissan is “spring side” in to the valve head. Can you please double check and verify this info, as this video will be very misleading for many, possibly causing unwanted future heat issues, as premature head gasket issues are very common on this type of Nissan engine.

[@ashishpatel1685]

Jonathan Gutierrez: The OEM from Nissan upper thermostat will never fit the way you mention . i have tried it. after market will work spring facing in the cylinder block. Nissan OEM upper thermostat (21230-6N20A) is little bigger to make it fit spring facing in cylinder block.

[@mronemanband1]

wrong thermostst spring side into side housing and control valve spring into cylinder head put back the same way you take it out ! Duh

[@glenmaise8184]

​@ashishpatel1685 ya'll have made this so confusing, please can you explain better, I don't want to make a big mistake..

[@desoman72]

Good video but it would've been helpful to add the torque specs for each bolt or nut.

[@mikewaller2617]

on my non OEM thermostat I did not notice any arrow to show if there was an "up" side to it. Maybe I missed it? Do non-OEM parts not have the arrow?

[@BigSleepyFloyd]

Is this the same for 2000 Nissan Altima

[@SuperMaurice1986]

Thanks appreciate it

[@rickbrown2764]

For both thermostats they have to have the spring portions facing into the engine block and head,or else you will not get the proper heat.

[@filpinoymechanic148]

The thermostat by the cylinder head,the spring is outside by the housing,I got the diagram for it ,and if you bought the oem parts it will not fit if you put the spring facing the cylinder head

[@guesswho2237]

fil pinoy mechanic is there a special grease you put around the thermostat what did you use ?

[@sbond1963]

Is it leaking from there or did you just have some other problem? I have a mysterious leak in front somewhere and I can't find it

[@mronemanband1]

wrong ! wrong thermostst spring side into side housing and control valve spring into cylinder head put back the same way you take it out ! Duh

[@vibez_remainz1283]

Where did you find these oem parts from? I’m looking for them everywhere but can’t find them.

[@johnq9917]

I have replace this both thermostat on 2004 altima 2.5s and my mpg dropped. now the car is more torque and fells like more horse power too. how can i birng back my mpg ?

[@MrGilreyna]

Tengo duda de posicion valv. En otros tutoriales la ponen hacia dentro, y este hacia afuera.

[@squirrelcovers6340]

Agreed. This is installed BACKWARDS

[@guesswho2237]

Do the arrows on the thermostat that say top with arrow up matter is the arrow supposed to be straight up, u never showed us that

[@leedclinton5026]

What brand of thermostats used?

[@squirrelcovers6340]

The spring side of the thermostat goes into the engine block. THIS IS BACKWARDS.

[@RedRabbit4230]

The lower one the spring does go to the inside of the block. The upper one the spring faces out towards the housing cover. Just as the video showed you to have do it 4 yrs ago. Go back and REWATCH THE VIDEO......

[@makieboytvusa4097]

sir 2 pala ang thermostat? un 2005 altima ko laging ubos ang tubig at maiinit ang makina

[@cpd969]

It might be your water pump leaking coolant little by little. You can smell it if there’s leak on the belt side of the engine. Yes, there’s 2 thermostat. I replaced mine last week even nothing’s wrong with the thermostats along with water pump.

[@imm6481]

Have you noticed why the water control valve and the thermostat are not the same Opening temperature?

[@filpinoymechanic148]

hello,,upper thermostat is 203`f opening,,while lower thermostat is 180`f opening,,,

[@googleuser3760]

Why in the Sam Hell would they use 2 thermostats??

[@glenmaise8184]

What, it has two thermostats

[@joshuasteward6899]

If there is a coolant bleeder I don't see it

[@josev1892]

T

[@cesarcamacho3270]

Altima 2010 coupe it's a same position

[@jonathangutierrez1759]

Very different engine, please do not base you repair off of this video