If the bottom of the overflow tank has dust as in "dry as dust," this suggests there isn't enough coolant in the system. Most cars are designed to always have coolant in the tank, with "hot" and "cold" fluid levels marked on the side.
If coolant is added to the tank and disappears over a few weeks (or days!) of driving, that indicates a leak somewhere in the cooling system -- either the tank, the connecting tube or somewhere else.
If the dust is more like dirt, rust particles or miscellaneous junk that has settled to the bottom of the liquid in the tank, that's not unusual. It's a good idea to clean out the tank every once in a while to make sure the tube to the radiator doesn't get clogged.
If there's a LOT of debris in the overflow tank, it's likely the rest of the cooling system is also dirty and needs to be flushed. This can be done by a service station or using a garden hose and a radiator flush kit available at auto parts stores. The do-it-yourself version is usually not quite as effective, but much cheaper.
Near the bottom of the coolant reservoir ( overflow tank)
A gas tank can indeed overflow if it is not full. A gas tank can overflow if the pressure inside of it is too high.
No! Just a draincock on the bottom!
On the bottom of the overflow / surge tank (passenger-side fender)
The "check coolant level" message will come on when the coolant level is low in the overflow tank. If the message stays on after the tank is filled, make sure the sensor on the front bottom is connected. If the connection is O.K., then lightly tap on the side of the overflow tank with a soft rubber mallet. If the message persists after driving the car a couple of days, replace the overflow tank.
coolant recovery tank? Mount recovery tank in location as to not interfere with any engine moving or heat producing parts - perhap on fender well or firewall. Take overflow tube from radiator neck to bottom of recovery tank Fill recovery tank with coolant Run overflow from recovery tank to atmosphere making sure it does not interfere with any moving engine parts
Engine overheating will cause the anti-freeze to surge into the overflow tank. A blown head gasket will also cause the anti-freeze to surge into the overflow tank.
Rust from your cooling system is flowing back into the overflow tank when the motor warms up.
is the line that serves as overflow tanks of oil to a tank specific to prevent the oil overflows into the sea.
On a LX it is located right on the washer fluid tank at the bottom. You will need to pull out the coolant overflow tank. The coolant tank and the washer fluid tank are one unit. it is a piece of cake.
Yes. It happened to me. Sometimes the vents for the two tanks are tied together. If you then overflow the black tank it will flow into the grey.
The overflow tank is either cracked or its overheating and leaking from the cap