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I noticed a lot of little bubbles inside the engine. Is that proof of an air leak?

April 26, 2017air bubbles engine leak little noticed proof

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I noticed a lot of little bubbles inside the engine. Is that proof of an air leak?

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Start your engine; if you can cover the air intake opening and the truck still runs, then you have an air leak. In such an event you would send the engine to the address on the home page for repair. 19 The reason the nut keeps loosening is most likely the Hex Nut Pin is missing. On the axle there is a hole that should have a short, small pin in it. That pin then holds the hex nut that holds the wheel.