nick.cfrancis Posted December 6, 2013 Share Posted December 6, 2013 Weather Conditions: 0 degrees fahrenheit. Temperature overnight was -20 degrees fahrenheit. Temperature has not been over 10 degrees fahrenheit for the last 5 days. Snowed 4 inches three days ago. Oil: Shell Rotella T6 5W-40. Motor: Stock EJ25D Transmission: 4EAT Last drive: No weird noises. Shut down completely normal. Problem: Started motor, noise like piston slap grew gradually louder. Noise focused on cylinder 4. Car fully warm, noise continued to get louder, engine struggled to stay running. Shut down car in fear of breaking something else Any thoughts? Link to comment Share on other sites More sharing options...
Stevo F Posted December 7, 2013 Share Posted December 7, 2013 Could be a collapsed hydraulic lifter? (I believe your engine has hydraulics) I had an old six cylinder Ford years ago that developed a loud valve noise after starting it up at 10 below one morning, and that's what the problem was. Link to comment Share on other sites More sharing options...
vr4 Posted December 7, 2013 Share Posted December 7, 2013 Ej25d is shim over bucket. No hydraulics. Link to comment Share on other sites More sharing options...
Kennyfvholla Posted December 7, 2013 Share Posted December 7, 2013 If I'm honest, I'd almost run a 0 weight (0W-30) oil in those temperatures. But, that's probably not what caused your issue. Now, what was the idle quality like? Smooth? Rough? Link to comment Share on other sites More sharing options...
spooln30 Posted December 7, 2013 Share Posted December 7, 2013 Sounds like an internal engine problem, like a cracked piston ring land or a worn bearing thus a rod knock. Link to comment Share on other sites More sharing options...
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