I have a 1995 ls auto with 133000 on it. I recently began hearing a ticking noise on start-up that lessens somewhat after it is warm. However, after driving at highway speeds(70-80) for ~25 minutes, the noise comes back and is louder at all engine speeds. I have recently changed the oil and filter. I also checked the valve clearance, it is within specs. The timing belt was changed at 90000, but it seemed a little loose. I could easily move it ~1/4in and maybe a little more. Could the valve springs be bad? Also I noticed that the up marks on the cam gears were not perfectly aligned.
Thanks


[Modified by groznyiv, 12:30 AM 11/30/2001]


[Modified by groznyiv, 12:30 AM 11/30/2001]

 

Is ur car DOHC (cam gears were not perfectly aligned) they are normal. As one straight the other one were not prefectly straight.

 

Yes, my car is a DOHC, the arrow on one gear was pointing straight and the other was almost the same.