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Engine undertray 700

posted by  kickboxer1961 on  Mon Aug 1 14:47 CST 2022
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last visit: Wed Mar 23 15:01 CST 2011
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Is the engine undertray an essential part in the cooling procedure ,thinking I might have a sticky thermostat or blocked rad ,I have lost my undertray any thoughts please ,thanks Steve uk Volvo b230k on carburettor.








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    Engine undertray 700

    posted by  Chris Mullet on  Tue Aug 2 10:48 CST 2022
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    last visit: Fri Oct 24 09:08 CST 2014
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    The undertray does effect how air flows through the engine compartment and very well a positive effect on cooling. That being said, I can tell you there are a LOT of cars driving around without the tray and they don’t have any overheating problems.

    Radiator flow can be checked by disconnecting both upper and lower radiator hoses and running a garden hose into the upper hose port and see how fast it drains out of the lower port. Or does the water back up in the radiator rather than running freely out of the lower port?







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