Question about Nissan Pulsar

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My pulsar gtir has a froth developing on surface when leaving the radiator cap off!is this an airlock issue is it something more serious?i think its an airlock due to the fact that the expansion bottle rises dramatically and there is no creamy substance in water or engine oil cap to imply that the head gasket as gone!you could here a gurgle sound on starting up the engine and switching off the engine!please help!!thanks!

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Taken the cap off expansion bottle put the heater on full start engine then the bubbles work there way out

Posted on Feb 09, 2010

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1 Answer

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