Which belt does it sound like it is coming from (serpentine or water pump)? Serpentine belt is on the right side (while sitting in the car) of engine and water pump belt is on left side.
I also have a ticking sound that seems to be coming from my serpentine belt (and I just replaced belt a few months ago). The ticking also seems to be synchronous w/ the motion of the belt. I know this because there is some white writing on the black belt and every time the writing passes a certain point (as the belt goes around), there is a tick. If the belt goes faster, then so does the ticking sound.
I haven't solved the problem yet. I plan on taking the belt off this weekend, and running the engine w/o the belt for a minute or so, to see if the sound goes away.
I believe that the ticking sound is related to another problem that I have (but this is still a theory), which is that the crankshaft pulley has a slight wobble. As the belt comes off of the crankshaft, it moves onto the tensioner. It seems that the belt is moving slightly on the tensioner and could be making a noise as it is moving to and fro.
Please let me know if the sound is coming from the serpentine belt. If it is, then check to see if your crankshaft pulley is wobbling.
1996 Contour SE Sedan 4D (Royal Blue) Duratec V6 2.5L 24-valve DOHC Automatic 75,000 miles No Mods (unless you call the DMD a mod) Replaced EGR valve (gunked up), EVR (EGR VR), PCV valve, and evaporative emissions hose (cracked).
|