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What is your question?
when stopped and turned off car, it started gurgling under the hood.. the radiator was supposedly flushed and coolant replaced in january. afte a few minutes the gurgling stops. what is it.in jan a rocker arm had to be replaced and the dealership said the enjine was full of sludge. could this come from that sr is it a radiotor problem help!
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The gurgling sound could be a result of air trapped in the cooling system or from the A/C as system pressures equalize when the engine is shut off. The cooling system should be bled. Careful inspection should be performed to confirm a sludge condition. It is common for sludge to form in the engine oil filler cap due to condensation and is normal. Sludge in the cooling system may be an indicator of serious problems. ie: radiator transmission cooler leaking internally, engine oil mixing with coolant. An A/C service may also help to restore the system to it's proper charge.