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    2007 Nissan Tiida radiator and smoke problems?

    Nissan Nissan Advice Nissan TIIda Nissan TIIda Advice Nissan TIIda 2007
    ...

    My 2007 Nissan Tiida sedan was out of coolant. I bought a new radiator but now the car won't start and is blowing smoke.

    Answered by CarsGuide
    9 April 2025
    David Morley

    I take it the smoke is coming out the tailpipe when you crank the engine, even though the engine is not starting or, at least, not running to the point where the car can be driven. It sounds like you might have 'cooked' the engine as old school mechanics would put it. When the radiator started leaking, allowing the coolant to escape, the engine overheated and 'cooked'. Which means the severe heat inside the engine damaged something sufficiently that the engine now won’t run.

    You could be dealing with a blown head gasket or a warped cylinder head, or even damage to the pistons. The smoke you’re seeing when you crank the engine could be oil smoke that’s a result of fired piston rings due to the overheating episode. The first thing to do is let a mechanic run a few tests on the engine to determine whether it’s retrievable or junk. From there, you can make an informed decision on whether to fix the car or cut your losses and simply walk away. If the engine is damaged beyond help, a second-hand engine from a wrecked Tiida might be an option if you decide you want to keep the car.

    Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.
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