Why is my Renault 19 losing coolant?

I have a Renault 19 which has started losing coolant. I can't see any leaks or signs of water under the car, but after driving it for 20 mins the coolant is almost all gone. Any idea what the problem could be?

Asked on 15 November 2016 by andrew

Answered by Alan Ross
So is the engine running okay? When driving, does the engine overheat at all? If so, it may be the water pump. Also suspect could be the cylinder head gasket. Would suggest that you have a compression test done and also a coolant pressure test done. These should then make it much clearer what the problem is.
Similar questions
My 2005 Subaru Outback 3.0R is losing coolant at a high rate, which reputable garages have diagnosed as a head gasket or cracked cylinder with estimates of £1800 - £ 3600 to replace. In 2015, the head...
My 2011 Hyundai Santa Fe, 125,000 miles, recently suffered catastrophic engine failure. Around 18 months ago, a new engine was fitted under guarantee. The cost of a replacement engine is higher than the...
My Daewoo Matiz feels sluggish in first and second gear. It jerks and I hear the exhaust knocking, what's the issue?
Related models
Diesels are frugal, the 16-valve petrol models are free-revving, available for banger money

Ask Honest John

Value my car