Can you lose coolant without having a leak?

**Gullible** · 10th July 2009, 04:47 PM

I have been topping up the cooling system a bit too regularly - each time I drive it.

I have a coolant level alarm and it goes off when I brake down hill. I top up the to just over the level (about 50ml) before I go anywhere and sure enough in under 20km the coolant sensor goes off when braking down hill.

I've had the system pressure tested - 3hrs no loss of pressure

The coolant alarm does not go off if braking on the flat or uphill so I do not think it is a short.

I have just replace the reservoir cap and no change.

Where is my coolant going? Should I be worried?

**Hymie** · 10th July 2009, 04:58 PM

I'm thinking head gasket or waterpump.
I've seen water pumps hold pressure when hot and drop water when the system cools dowm.

**Gullible** · 10th July 2009, 05:17 PM

Noooo, don't tell me that. I've just had an engine rebuild and new water pump fitted

**p38arover** · 10th July 2009, 05:31 PM

Check for leaks in the LPG converter hoses.

It'sNotWorthComplaining! · 11th July 2009, 10:52 AM

Also check your passenger side floor under the carpet .... just in case your heater is leaking

**Gullible** · 11th July 2009, 02:25 PM

Originally Posted by p38arover

Check for leaks in the LPG converter hoses.

Yay, Thank you Ron.

I ran the car up to LPG operating temp and found a small drip off one of the converter hoses. I waited until the engine had cooled down again and tightened the hose clamp, wiped up the small puddle under the airbox (one wonder I could not spot anything on the floor), ran up to operating temp and no leak visible.

I'll keep an eye on the coolant level for a couple of days, but hopefully that is it problem solved.

**LEAKOVERY** · 25th July 2009, 10:19 PM

Originally Posted by black betty

I have been topping up the cooling system a bit too regularly - each time I drive it.

I have a coolant level alarm and it goes off when I brake down hill. I top up the to just over the level (about 50ml) before I go anywhere and sure enough in under 20km the coolant sensor goes off when braking down hill.

I've had the system pressure tested - 3hrs no loss of pressure

The coolant alarm does not go off if braking on the flat or uphill so I do not think it is a short.

I have just replace the reservoir cap and no change.

Where is my coolant going? Should I be worried?

MINE LEAKED INTO THE SUMP AND MUCKED MY OIL UP, THE GASKET BETWEEN THE TIMMING COVER AND BLOCK STUFFED UP

Thread: Can you lose coolant without having a leak?

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Can you lose coolant without having a leak?

COOLANT LEAK THOUGH TIMMING COVER INTO SUMP

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