TwinTurbo.NET: Nissan 300ZX forum - Re: Sizzle noise from behind the engine.
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Subject Re: Sizzle noise from behind the engine.
     
Posted by craigz96tt on June 27, 2012 at 12:55 PM
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In Reply To Sizzle noise from behind the engine. posted by AsaHerring on June 27, 2012 at 01:10 AM
     
Message Have you done throttle body coolant bypass? Two things it could be, first the two large coolant hoses that go into the firewall or if bypass not done there is a hard line tube that runs behind the engine and is coupled to another by a 3" piece of 5/16" hose. You can see it with an extendable small mirror and a flashlight but can't touch it unless you pull the transmission. I had to replace it on mine, you won't smell coolant but if you notice even a drop or two behind the oil pan that's what it is. Hope not

     
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