7

"Green" coolant is usually considered a typical coolant. It should get changed out about every two years. "Orange" coolant implies Dexcool, which is the stuff used in GM vehicles and is a long life coolant. It should be replaced about every five years or 150k miles. If you mix the two together, there's no real issue, but you shorten the life of the coolant ...


7

If you didn't overheat the car, then you've done no damage. The radiator cap seals the system and allows pressure to build (to a point), which raises the boiling point of the coolant. This allows it to take more heat. If you didn't overheat your vehicle, there's nothing to worry about. The only thing you'd need to do is ensure you haven't lost any coolant in ...


6

Coolant coming out clean is a good sign. How to spot a bad radiator A radiator is a device consisting of tubes through which coolant flows and fins connecting the tubes. The fins increase the surface area of the radiator (dramatically), increasing cooling efficiency. The surface of the radiator should look uniform. If there is an area where the fins are ...


5

Depends on the design. If those ports are connected to the same fluid channels in the radiator then you will need to blank them or connect together. Many have a separate radiator built into the same structure and the auto box cooling portion is designed to have oil flowing through it. This means you can just leave it or blank as you wish. I used that ...


4

Radiator flush isn't anything magic. It is just a corrosive liquid that attacks everything in contact with it, to greater or lesser extent. You hope it dissolves the blockage before it makes a mess of anything critical like the cooling passages in the cylinder block or the inside of your water pump, or it dissolves a hole in the radiator itself. (Old ...


4

If the hoses are shedding rubber then they are nearing their end of life. To avoid problems, like having one burst open on the road, you should replace any of them which are showing signs of age. Being pliable is NOT a reliable test, in fact when they get old and start to deteriorate they usually get more pliable. Replacing the hoses is not that expensive ...


3

Yellowjackets are omnivorous, meaning part of their diet consists of other bugs. One thing radiators are full of are dead insects which are easy to forage. This also explains why heat doesn’t play into their activity. Your best defense is a good wash.


3

Early on when coolants changed to different types you could not mix types, they would gel. These days all coolants can intermix without issue as coolant manufacturers made coolants compatible with any other type of coolant, so you are safe with mixing these days. But as Paul stated doing a cooling system flush is part of regular maintenance as coolant ...


2

What @blacksmith37 says is true, kinda. You could stick the hose into a catch bottle, and that would tell you that coolant is coming out during high load, high temp conditions. That's it. The coolant in that bottle WILL not go back into the radiator during cool down, like in a more modern cooling system. What makes that work in a modern flow back overflow ...


2

The reason the cooling fan comes on when you turn on the A/C is because in front of your radiator there is another part that looks just like a radiator called a condenser. The condenser works the same way that the radiator does in that it radiates heat to the atmosphere, and it does this more efficiently when air is moving faster through it. The scientific ...


2

Three possibilities come to my mind: As noted in the first comment above, your hose clamp is failing or loose. Check it. The hose is damaged or leaking. Replace it. The radiator fitting is damaged or leaking. This may require replacing the radiator. Also, I'll add, based on later information that you posted. Perhaps this is not the root problem. If ...


2

So if I understand correctly, one of your radiator hoses (I'm assuming the UPPER one here since if it was the lower one, they never would have been able to fill it with coolant to begin with) was disconnected or (more likely) became disconnected at some point while you were driving. If that's the case and your engine overheated to the point of stopping, as ...


2

So I'm guessing at one time your vehicle had a slight coolant leak. The owner added some coolant stop leak to the system. There are lots of forms of this... here's a typical summary. I know lots of folks have recipes for leak stop stuff.. the one I remember from old skool mechanics is to use raw ground pepper as a leak stop filler. Generally stop leak ...


1

The plenum is usually an enlarged section feeding the 4, 5, 6, 8 or more ports so that there is less turbulence in the air as it enters the ports. Too much turbulence and funny things start to happen like one cylinder runs rich compared to the others.


1

I'll first say that it is not a question of your engine not overheating at all, but rather your engine not overheating yet. Empty coolant will absolutely cause your engine to overheat given the opportunity. You should not drive this vehicle more than is absolutely necessary because running an engine dry can cause a whole host of very expensive issues. Also, ...


1

Several possibilities but the one that comes to mind first, due to your spraying issue, is a coolant hose burst or a connection loose. Either way you want to deal with this promptly as you may cause severe damage to your expensive engine very quickly should the cooling flow to the vital parts get interrupted. Next up would be a problem with the water pump or ...


1

In my opinion, they seemed to be concerned about the antifreeze and replaced it. That was a good call. They were probably trying to clear the system. Many times on vehicles this age, multiple flushes are required to completely clear the system. They probably wanted to do more but didn't want you to go through the extra expense on a vehicle that age. If they ...


1

The typical 50:50 glycol mix under normal operating pressure can be over 200F. That would feel very hot. Typically 120 F is the hottest water a person can stand for more than several seconds. Get an infra-red thermometer , great for a wide range of temperatures without contact. Helpful for making fudge. I drove my 3.5 L Murano about 12 miles on interstate ...


1

Dexcool is a GM product, and it comes out orange. Ford came out with an orange coolant (Motorcraft Orange) which is similar to Dexcool, and probably interchangeable, but there's no consensus. It's hard to say which was used from the color. But, it wasn't right anyway. This chart shows which coolant to use for most Ford vehicles depending on the model year, ...


1

They can do a cooling system flush and it'll be fine. It takes a while for mixed coolant to do damage. You should be fine with a monday flush. Flushes run less tha $200.


1

If there's a crack in your radiator, you'd most likely see the steam coming from where the crack is at or if the crack is spraying coolant on hot engine parts. This, considering the situation, would be completely expected. As you stated, though, as long as you've kept the coolant topped off and you've never seen the temp rise above 1/2 way (normal), there ...


1

That’s not for coolant That is for Automatic Transmission Fluid. Inside your radiator is another little tiny radiator that interchanges heat between the ATF and the coolant. This flows both ways: if the ATF is hotter than the coolant, e.g. Lots of heavy torque converter work, it keeps it at sane temperature. If the ATF is cooler than the coolant, it ...


1

It's best to minimize the amount of air below the cap, so topping it off up to the ring that the cap seals against is best BUT if you've just replaced the coolant, there's likely to be air elsewhere in the system anyway. Some vehicles have a defined bleeding process you have to follow to get the air trapped in high points out (usually the cylinder head and ...


1

I would upgrade the radiator to an aluminum model if they offer one, if not a new brass radiator as the cores may be blocked in the old one and its not worth sending to a radiator shop to rod them out. The fan switch in the radiator are prone to fail or work intermittently, replace it also.


1

I would look at replacing your temperature sensor, as it is telling the computer to turn on fans, But, its not keeping the fans running. Good likelyhood it is defective and there cheap 15-30$ most of the time with exceptions.


1

If the block heater functions you will be able to feel the heat by touching the engine after 4-5 hrs,it is not a problem to have the block heater on overnight. If you are unable to feel the heat after multiple hrs the block heater does not funcktion so it needs to be replaced or it might be a bad connection before the heating element. Here comes a pro tip ...


1

It could be a head gasket and lack of oil in the coolant or coolant in the oil is NOT a conclusive indicator. It all depends on where the defect is. But there are a number of other possibilities that you should investigate before checking the head gasket. Check the radiator cap, check the hoses, check that the radiator is no clogged, check that there are ...


1

Sounds like you have replaced most items suspect of the cause of overheating at high speed. The return hose from rad to water pump may be collapsing when water pump reaches high speeds. This will cause restricted flow of coolant hence less volume therefore overheat of block fluids. If you have been around vehicles as long as I have you may have removed "...


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