Never had this problem. Never will. It doesn't make much difference unless it's completely clogged with mud and bugs

kzbin.infoagpQmleVq7I

As you showed the bottom portion below the condenser coil to the rad support there should be a shield dam that protects the rad - if the truck came with one - if not then Like I said before a screen would definitely help in that area to keep the debris out of the radiator...

Here is a tip to save you some long term costs. 1 - Put a screen with a frame in front of the Condenser coil - the Full width of the rad support cavity - as this will catch all the bugs and large debris and will save the entire system from clogging - I know this works because when I bought a 2008 F250 someone already did this and Wow! all three coolers are in perfect shape {condenser coil - tranny cooler - and Radiator core are all debris clean} with minor dust. Also make sure the bottom of the radiator is protected from dirt getting up into the fins - block the cavity with foam like they do from the factory - weather stripping would work in this instance...

Might as well just buy a new radiator since you already have it out. The inside of it is probably dirty as well. There are many cheap aftermarket options online

BUy a spray bottle of LA AWESOME at the dollar store .... spray it good on anything you want to clean - wait 5 minutes and hose it off

My 4Runner was running hot, but this should solve it! Remember I'm no mechanic and this video is about cleaning the OUTSIDE of your radiator, not the inside. When I was searching KZbin, I kept finding videos about cleaning INSIDE the radiator, or about cleaning tractor radiators haha. I couldn't find many videos about cleaning the outside of car radiators on KZbin, so I hope this helps you out!

Remember, I'm no mechanic. And I know I talk a lot but you can go watch the shorter video. It's mildly annoying that Toyota hid the lower bolts, but overall it's not too bad! From now on, cleaning the radiator will be part of my regular maintenance schedule. Don't forget to check the description and time stamps.

Remember, I'm no mechanic. It's mildly annoying that Toyota hid the lower bolts, but overall it's not too bad! From now on, cleaning the radiator will be part of my regular maintenance schedule. If you want to hear even more ramblings go watch the long version. Don't forget to check the description and time stamps.

Make sure to park your car on a level upslope when you refill coolant. This will force air to gravitate toward the radiator filler opening and eliminate air pockets as you add coolant. You don't want any air in the system that can cause the car to overheat. Another helpful thing is to get one of those special funnels that seal at the radiator opening. You keep adding coolant till the funnel is at least half full. Turn the engine on and let it idle till fully warm and also run the heater. When you don't see any more bubbles in the funnel, it means all the air pockets are eliminated.

Did you end up solving the issue ? I’m having overheating issues too on my 2004 4Runner Already flushed the coolant And replaced thermostat and radiator cap thanks

Thank you ,,,, for the help from your video ….

Man mine has been doing this for a about a few months now, if the car is idling for awhile it’ll start overheating. During winter/spring months I’d just crank the heater on and the temp would drop back down. However, now that summer is here I can’t keep cooking myself to death with the heater on and need to tackle this job lol

Update #2 -- 12/18/24 -- Remember: I'm no mechanic. So throughout this overheating saga I was under the impression that my radiator was very clean. Well... turns out that the visible cooling fins inside the engine bay are the AC condenser, not actually the radiator itself. You can laugh at me, it's okay. There's about a half inch gap between the AC condenser and radiator and the radiator is not really visible because of a foam strip on the rad support bracket. So, after removing that foam and getting a peek at the radiator through the tiny gap it looks atrocious. I'm fully convinced as of this moment that the issue is a dirty radiator (not condenser) because it makes sense with every single symptom so far. My solution will be to replace the radiator because I'm at 200k on the original and it feels like a good time for preventative maintenance. However, I will be cleaning and keeping or selling the old one because it appear to be in near perfect shape with no leaks. The amount of dirt I mention at 5:21 and 11:02 should have told me something. Update #1 -- 6/5/24 one month after this video -- I was hoping this story was over... but today in a parking lot, a sunny 85º day, the engine temp started slowly creeping upward to about 2/3rds on the gauge and with one quick loop around the parking lot the temperature dropped again no problem. Few minutes home, pop the hood & crawlin' under, I see no leaking on the engine to indicate water pump seeping, coolant overflow levels are perfect so it's not inhaling it (head gasket) &/or leaking it bc there's also no leaking around radiator seams or anything. Truly mysterious still, a bit bummed. Only two other symptoms I can suspect as real possibilities right now: my coolant is near due for change (but I don't think that's the issue) oorrr thermostat is partially failing? It doesn't seem likely or common, but a sticky thermostat spring could be the culprit here to explain it being intermittent. Because it's so affordable & easy I'll go for the thermostat first and continue to monitor. If that doesn't solve it then I'll probably do water pump and no matter what I'll do coolant flush soon anyhow.

Back in the older days when I used to wrench for Toyota we used to take the fan clutches apart and put in a couple of small tubes of viscous fluid

This is awesome, thanks for sharing! I always wondered what exactly that was. Approximately how many miles did you have when you began to experience the cooling issue?

Nvm just watched the final notes lol hopefully its good now!

Thermostat is ok? Overflow coolant tank gets full? Could also be a bad radiator cap as well.

Got the fan clutch, but still waiting on the 4Runner

Here for it! Setting the bar HIGH with this production quality 🤌