Question about 1992 Volvo 240
My mate just brought a vauxhall corsa1.2 sxi 16v but has been stood for ladst 14 months it starts straight away but the fan dont come on the radiator but works inside the car, so starts to over heat also is just blowing cold air into the car when you set for hot?? what could it be
The engine has little or no coolant. The radiator fan temperature sender needs to be in contact with coolant in order to work, and the heater matrix inside the car uses diverted engine coolant as well.
Do not start or run this engine again until you've refilled the coolant system, to avoid airlocks as you do so set the heater inside the car to hot. Unfortunately, once you've refilled the system I strongly suspect that you'll discover the engine has a blown head gasket and it's not a cheap fix: it starts off expensive due the the labour costs and each additional fault caused by the failure just adds a lot more each time. Usually, you must use a proper water/antifreeze mixture, but as it's expensive and very likely to need draining down again for repairs just use water for now but refill later with the correct mixture when repairs are complete. "Antifreeze" isn't just for winter: it prevents corrosion inside the engine all year round and also prevents the engine from overheating as it's more effective than water alone.
Signs of a blown head gasket are plenty of white smoke from the exhaust even when the engine is warmed up and white creamy deposits in the oil and under the oil filling cap which is an emulsion of water and oil known as mayonnaise. You might not get both symptoms, but the easy and foolproof way to check is to get a garage to do a "sniff test" on the coolant. This is a cheap chemical test on the coolant and instantly indicates a failed head gasket.
If the gasket has failed, then it can work out cheaper to transplant a complete engine as the labour charges are far lower, but avoid so-called "cheap" recon engines. Either pay for a proper professional remanufactured engine (definitely not cheap), or fit a known good engine from a scrapped car.
Posted on May 26, 2010
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Posted on Jan 02, 2017
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