Car overheating

2012 VAUXHALL CORSA
80,000 MILES • 1.2L • 2WD • MANUAL
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JADECHELSEA
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So car is over heating, temperature warning light is regularly on, losing water from somewhere and only takes about 800 mls of water when topping up. Foggy inside when it’s icy outside, making a grinding noise in certain gears, misfiring and low power. No heat inside at all. Tried head gasket sealer although oil looks fine cloudy oil is usually sign of head gasket? Mines not cloudy. Tried changing water pump, tried to get rid of air lock. What else could it be?
Dec 23, 2019 at 5:15 AM
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KASEKENNY
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I would suggest starting with taking compression readings of each cylinder. It sounds like the head is warped.

https://www.2carpros.com/articles/how-to-test-engine-compression

https://www.2carpros.com/articles/head-gasket-blown-test

Unfortunately, we don't have a service manual for your vehicle but here are some guides that will help with the basics of performing this.
Dec 24, 2019 at 5:53 PM