2000 Lincoln Town Car - engine roars sometim when the engine is cold. The noise stops when the accelator is depressed. Whaat is the cause of the roar?
There is an roar from the engine compartment sometimes when the engine is cold. The noise stops when the accelerator is depressed. What could be the cause?
When the engine is cold the oil has settled in the lower engine areas. When you start the car, the oil takes a second to build pressure in parts of the engine where the oil has drained from. When you depress the accelerator you cause the oil pump to send oil to all the dry spots, thus quieting the engine noise.
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