Dallas Fort Worth 5.0 Mustang Club - View Single Post - Slapping noise on start up

**fordplay** · 11-04-2013, 08:22 AM

I'd throw some motor honey in the oil and sell it... OK it might not be that bad.. you are thinking its rod knock and you want us to give another answer.. it could .. might maybe be piston slap.. it might have been there since you bought it?? In which case.. allllll ls motors do it, Mercedes do it and some new 5.0 do it.. just keep track of it and see if it gets worse

11-04-2013, 08:22 AM	#13
fordplay Senior Member Join Date: Apr 2013 Location: fort worth Posts: 234	I'd throw some motor honey in the oil and sell it... OK it might not be that bad.. you are thinking its rod knock and you want us to give another answer.. it could .. might maybe be piston slap.. it might have been there since you bought it?? In which case.. allllll ls motors do it, Mercedes do it and some new 5.0 do it.. just keep track of it and see if it gets worse