Coolant overflowtank

[jonne123]

Why my coolant overflow tank keeps emptying itself to low reservoir cap leaking? Headgasget?

[Calum]

Yes, usually an indication of head gasket OR some people get this when the radiator cap fails.

So if the spring pressure is too weak.

[jonne123]

the radiator is bone dry but the overflow tank is wet. but no bubbles and i noticed thermostat housing hose leaking on head so fix that so the i see.

[Calum]

Hhmm, so the pressure will leak from the weakest point.

Is there any oil residue in the coolant system? That'll be the biggest give away.

I always default to head gasket, but have been proven wrong on many occasion. So check the radiator cap/

[jonne123]

The coolant tank has littlebit but my waterpump seal leaked.

[Calum]

Okay, well the radiator cap is the easiest/cheapest thing to replace so best to start there.

[jonne123]

ill test it when i have time with haynes manual