Why is my coolant overflow not draining back into the radiator?

Coolant Reservoir doesn't drain back into Radiator

You probably have some sort of air leak on the coolant overflow hose. The expanding coolant flows out but when it contracts as it cools, air gets sucked back ...

Coolant goes to reservoir but doesn't return | BobIsTheOilGuy

If coolant is not being pulled back into the reservoir, these are the most likely possibilities why: 1) the hose between rad and reservoir is pinched or ...

Why is my coolant overflow not draining back into the radiator? - Quora

1) Either the hose from the radiator neck to overflow tank is kinked (or too soft and collapses), clogged, broken or does not go far enough into the overflow ...

Coolant tank not emptying? : r/MechanicAdvice - Reddit

Or did you open the radiator cap and notice coolant isn't getting sucked into the cooling system from the overflow tank? If you just drained the ...

Coolant not returning to radiator from expansion tank

If the crack is on the inside, then any drainage would go back into the reservoir and not spill out on the ground, but it would break the vacuum ...

What Causes Coolant Not To Suck Back Into The Overflow Tank?

If you don't find anything wrong with the radiator cap or the radiator filler neck, repost and we'll try some of them. Like. Reactions: j0rd4n ...

Coolant Reservoir doesn't drain back into Radiator - YouTube

Up Date... Found leak bottom rad hose ,small drip every minute Changed CLAMP. What is Your Coolant Reservoir For.... Your radiator cap is ...

Coolant goes into overflow but doesn't go back to radiator. Why?

Possibly you need a new radiator cap. My first thought though was that the small tube running from your radiator to the overflow tank is not ...

What's Causing My Coolant Reservoir to Overflow? - AutoZone

A blocked or damaged radiator restricts the flow of coolant, causing a build-up of heat and pressure. This may push coolant into the overflow tank, and if not ...

Stumped... coolant goes into overflow but will not flow ... - Honda-Tech

Is it a stock overflow/reservoir tank? Either way, make sure the hose on the INSIDE of the tank goes all the way to bottom. i have seen a few ...

Coolant wont drain from reservoir - Sprinter-Source.com

So your reservoir is perhaps caked with scale or other debris that is blocking flow. You should be able to easily squeeze the top hose and push ...

Coolant reservoir full but radiator empty - where to start?

A defective or the wrong type of radiator cap will not allow the coolant in the overflow (expansion) tank to return to the radiator. Also you ...

Radiator Not Taking Coolant From Reservoir

Make sure the cap is in good repair. Like others here have said, seems like the system isn't sealing some as it cools off no vacvuum is made to ...

Coolant overflow resevoir not draining back into radiator

Simply clean the reservoir cap and the tube attached to the radiator. Those two can get clogged. When did you last flushed the coolant system?

coolant not venting back into overflow tank | Ford Explorer Forums

The lack of flow to the overflow reservoir might be due to the radiator cap, if the spring is too strong or the rubber gasket is swollen, it can block the ...

Coolant not flowing back into the radiator - Honda Forum

welcome to the forum have you replaced the drain hose from the rad to the reservoir sometimes it can flow one way but block the return to the ...

Coolant overflow doesn't drain back to rad.

Or, there's a leak in the system somewhere, so the radiator sucks air in through that leak area, rather than sucking on the coolant reserve tank ...

Overflow tank not letting antifreeze back into radiator

I would make sure the coolant overflow tank is clean because flowing can easily be restricted by dirt. Also make sure the radiator cap seals on ...

coolant won't drain back into radiator from reservoir | S-10 Forum

Not a drop had drained back in. There are two hoses on the reservoir; a hose from the radiator neck to the bottom of the reservoir, and a hose ...

Coolant overflow tank not draining - ultimatesubaru.org

As long as the hose from the radiator to the overflow tank is not full of holes, one end is securely attached to the radiator nipple, and the ...