Help me guys, my 90's Camry V6 recently has squeal noise coming under timing cover.
It first happened a month ago but occasionally, because I was driving just 30km everyday. But after last Sat's 200km highway driving, the noise is always there just like some small birds are singing inside. I was assuming it is time belt or pulleys worn and send it to dealership. But after inspection they told me it is the water pump's problem and will take a lot labour hours to fix that (about 4 or 5 hours, much more than only change timing belt).
Because costly I just want to ask you guys some advice if it is a urgent problem or not. What does a squealing water pump affect?
Thanks in advance.

It first happened a month ago but occasionally, because I was driving just 30km everyday. But after last Sat's 200km highway driving, the noise is always there just like some small birds are singing inside. I was assuming it is time belt or pulleys worn and send it to dealership. But after inspection they told me it is the water pump's problem and will take a lot labour hours to fix that (about 4 or 5 hours, much more than only change timing belt).
Because costly I just want to ask you guys some advice if it is a urgent problem or not. What does a squealing water pump affect?
Thanks in advance.