Jump to content

    If you want access to members only forums on HSO, you will gain access only when you Sign-in or Sign-Up .

    This box will disappear once you are signed in as a member. 😀

  • Connect, BE BRAVE - We Share Fishing Reports & Outdoor Information Here

            TURKEY CONTEST "Post Your Thoughts" - Leave YOUR mark, make each place you visit "a little better"! Post please......

        HSO Turkey Contest - Sign-up by April 1st. - Click Here.

        EMOJI those posts you 'appreciate, please...IF YOU WANT MORE LIKE IT HERE..'

        Have Fun!!!


Tundra new radiator install issue

Recommended Posts

Rainy day project today, was to replace the radiator in my 2008 Tundra with the 5.7 with 130k miles. Everything went well and didn't take too long. I used the OEM replacement right from the stealership. Got everything back together and started to slowly add coolant. It takes roughly 10-11 liters or just under 3 gallons. I was only able to add about 1.5 gallons before it got full.

So I started truck up, squeezed top hose for bubbles and got some out but level never dropped. Let it run for 15 mins with heat on. I saw temp gauge on dash climb up to just below midway. Top hose felt warm to touch as I squeezed it but level never dropped enough to add anymore coolant.

So my question is does anyone know if OEM radiators come with an plastic plugs or anything that should be removed prior to install? I didn't even look, I just installed and hooked up each hose. I am wonder if there could me some sort of plastic plugs in the inlet or outlet that I should have removed first prior to install?

The lower hose of my radiator that goes from the bottom of the radiator up to the thermostat never got warm after running for that long. Its either plugged radiator or bad thermostat? Would just be really big coincidence to have thermostat go bad when I wasn't having any issues with it prior. And water pump was replaced at the dealer at 85k or so due to a leak so I don't suspect that is an issue either.

I have since let motor cool and saw some drop in the funnel but nothing significant. Any ideas what to do next?



Share this post

Link to post
Share on other sites

ok after letting everything cool down for a couple hours it has now completely drained from the funnel enough for me to get the radiator cap back on. Going to let it sit over night and see if anything drips or leaks just to make sure I got the hoses and clamps back on good. Once I know I am good there I will take it for a drive tomorrow and get it under load and try to some burp more air out of it if I can. really hoping its just a big air bubble in there and I can get the appropriate amount of coolant added.

Share this post

Link to post
Share on other sites

You didn't let it run long enough. At some point you should have felt the radiator get warm and the Fan clutch start engaging the fan a lot more. You want it to run with the thermostat open and occasionally raise the RPM to help push out any air in the system. Sounds like you where using a spill free funnel, Perfect! I just replaced mine last spring and I used a little more than 2.5 gallons after it was all burped. If the thermostat was stuck shut the temp would just keep climbing.   If the thermostat was stuck open you would not have had any interior heat.

Share this post

Link to post
Share on other sites

well I think I may have just been over thinking this all but hey with an aluminum motor you can never be too cautious especially when it comes to over heating lol.  Everything was fine today, I let it warm up for 15 mins and no issues, and let it go for 15 more and monitored while squeezing the hose and giving a few revs here and there. Then went for a short drive down the highway and all was well. Temp stayed the same, never got hot. And after letting it cool down it purged some more fluid back into the radiator from the over flow. So I may check it periodically to see if it needs a top-off.


Even after running for 45 mins the bottom hose never got warm but maybe that's just because the radiator is doing its job?  The coolant coming out from the bottom back to the block had cooled off that much it doesnt feel warm any more?


@Jeremy airjer W did you drain the the heater core and engine block drains when you did yours? I opted to not do those as I didn't want to mess up that 10mm brass bolt up under the heat shield. How much coolant do you think gets left in the engine if you don't drain those 2?  Also did you remove the fan? I opted to keep on the fan in place but removed the rear shroud from the radiator and tucked it up back over the fan. That left just enough room with some wiggling to get the radiator out and carefully drop the new one back in. 


Pretty easy job to do for the most part as long as you dont over think it lol. Thanks for your help!



Share this post

Link to post
Share on other sites

I have no idea what the total system capacity is. I did the same thing with the fan shroud. The hardest part was moving the transmission cooler to access the lower radiator bolt on the passenger side.

Share this post

Link to post
Share on other sites

Join the conversation

You can post now ↓↓↓ or ask your question and then register. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Your Responses - Share & Have Fun :)

    • St. Louis style ribs and taters on the smoker today.....
    • Congrats Wanderer.  Thanks for the participation award again!
    • Looked did then realized I don't believe his taste buds. He purposely was drinking Miller Lite. Yuk
    • I’d say it depends on how fast we want results and what the public will tolerate.  I do think a closure during their most vulnerable time is worth serious consideration.  We close the season for other fish for the same reason.  Now we’re realizing the never ending supply of quality panfish does really have an end.   It’s really going to be up to us to understand and accept the facts about how we affect the fisheries.  Getting this information out there and talking with each other is a big help.  I personally know several people who have changed their view on filling the live well or bucket with the most and biggest panfish they can to self imposed limits.  But I also know several people who are still proud as can be to bring home that pile of upper end fish, and worse yet making several repeat trips and bringing others with to do the same.  It’s hard to tell friends what their doing isn’t helpful.   One group of people can substantially fish down smaller lakes in 1-3 years and they’re fine with that.  On to the next lake.  I literally heard that just yesterday.  The limit was dropped on that particular lake to 5 this spring and that has curbed the number of trips they’ve been taking out there.  To me, it doesn’t get to be any clearer than that.   Minky, your practice sounds like what we need to get that 10% group of takers to adopt.
    • Wanderer, any ideas? Would the reduced limit and one over 9 or 10 inches be enough? Should there be a short season closure in the late winter / early spring?  Only catch and release in May and June. I love catching them, eating a few and releasing the rest.
    • here is a new idea to try:  
    • I would have to say that Wanderer is the biggest turkey so he gets my vote. 😀
    • I was out at a local lake last night and found the gills on beds with a few crappies mixed in.  I was learning the lake and planned on keeping moving and targeting bass but couldn’t resist pulling a few pannies in.  As always it was fun but I didn’t keep any and ran into several beds. They were topping out at a solid 8 inches on the board.   As I moved along I could see someone down the line, I thought maybe he was fishing bass also but he didn’t move until I got within about 75 yards.  When I got to the spot he was fishing there was another set of beds but I couldn’t see a fish on them.  Threw my bait in and didn’t get bit.     I’ve been that guy before but I’ve seen that scenario play out too many times to be OK with it anymore.  I know the panfish get hammered all winter and that’s probably putting the biggest hurt on the population but stripping the beds is something we really need to curb IMO.
    • Yes - absolutely thank you to Borch for running this again!   And thanks to everyone who entered!  Having the contest and getting some encouragement helped me get more back in tune to the spring turkey season than I have been lately.  And learn the lesson (again) to not under estimate what’s available and what can happen for anyone.
    • Yes- a cheap go pro knock off. 
  • Topics

  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.