Hi,
My 2000 TRD 4x4 3.4L has 98k and 5k ago I had the timing belt, water pump, and the other belts changed. Basically the 90k servicing.
Now, 5k miles later I have developed a tapping that occurs only when I idle after driving 5+ miles. But the engine has no change in performance whatsoever and if I increase the tach on the engine (slowly) the tapping quickens then goes away.
New garage I went to for oil change says it may be the timing belt tensioner. Is there any other characteristics that would point in that direction? I hate to have to get the engine ripped apart again. And I don't think the timing belt work is still under a warranty.
Any advice...?? Hopefully it's some simple mechanical interference that won't affect anything..?? I'm sure it could be anything and I probably haven't described it well enough for a quick answer but what may be good is that there is no other performance issue with the engine at any speed.
Thanks in advance for any help,
--Bill