irondiezl3
03-05-2008, 03:38 PM
55k 04 gl2. slight tick in engine at idle. doesnt speed up when engine speeds up but is constantly there. its not that typical knock most 3.4s have this is a light small tick that has the same tempo all the time and is always there. my first thought was gas so i tried all 3 grades of gas. then i tried fuel system cleaner and bought the most expensive one i could get. next i did a full tuneup except for the coolant and tranny fluid everthying else was changed including thermostat and even an oil pump switch which the dearler said the pcm threw that code out in the paast and i never saw it but it was covered under warranty. so what can this be? i know its hard to determine without seeing or hearing engine but its driving me nuts and i want to make sure its not serious. if i had to pick a side id say coming more so from passanger side of engine.