Coolant loss

[cyclopse]

I think this is serious.

Noticed temperature gauge fluctuating upwards from its normal 9 o clock position. 

Checked the expansion tank and it was empty. Had to fill it up 5 times on the journey home. Got home and it was empty again.

There is no engine light showing on the T Sport.

Physical inspection didn't show up anything, no visible leaks or leak from gasket. 

Is this excessive water consumption an indicator of a damaged engine?

Any views welcome.

Regards

Cyclopse

[oldcodger]

Hi,

Might help a bit more if you say how much coolant you added vs how many miles you were doing ?

 

Typically 3 prime areas to loose the water from -

A leaking radiator / cap  or hoses .

Water pump seal/bearings.

Cylinder Head Gasket.

Often  the leak only occurs when its hot and the water evaporates away quickly, so you need to look for a tell tale  trace of dried coolant, often a muddy orange colour.

Depending how fast the leak is happening, a CHG  can cause a steamy exhaust.

A trip to a garage for a pressure / compression test should highlight the cause if you cannot see any clear visual signs.

Assume no one has been working  around the radiator drain tap ...?

[FROSTYBALLS]

Do you still have the Yaris - or does your profile need editing?

[cyclopse]

28 minutes ago, FROSTYBALLS said:

Do you still have the Yaris - or does your profile need editing?

Yes I do, this query refers to girlfriends car.

[cyclopse]

1 hour ago, oldcodger said:

Hi,

Might help a bit more if you say how much coolant you added vs how many miles you were doing ?

 

Typically 3 prime areas to loose the water from -

A leaking radiator / cap  or hoses .

Water pump seal/bearings.

Cylinder Head Gasket.

Often  the leak only occurs when its hot and the water evaporates away quickly, so you need to look for a tell tale  trace of dried coolant, often a muddy orange colour.

Depending how fast the leak is happening, a CHG  can cause a steamy exhaust.

A trip to a garage for a pressure / compression test should highlight the cause if you cannot see any clear visual signs.

Assume no one has been working  around the radiator drain tap ...?

This was over a 90 mile distance. Put in 3 litres in rages to get me home.

Perhaps it not as bad as I feared then. I know someone local who is an expert with engines so will take in next week.

[RazzerRazor]

Happened to me on my Impreza. Turned out it was the coolant hose, being old and that. After further inspection....slight split in the hose. Replaced and all was ok 👌 

[cyclopse]

There is an update about this. A small leak was found in the lower corner of the radiator. New radiator and temperature gauge back to its regular 9 o clock position. Being returned to garage on Monday for a new clutch.

[RazzerRazor]

Great news mate. Could of been alot worse and expensive! 

[oldcodger]

Did you spot the leak yourself or did a garage do a pressure test ?

[cyclopse]

There was no coolant on the drive so it wasn't easy to spot. Showed up on the garage pressure test yes.