It's hard to prove fault in these cases but the timing belt change requires removing the crankshaft pulley. So the mechanic would have had to have at least seen its condition. More likely, he damaged the pulley in the process of replacing the timing belt. Maybe he used an impact wrench when he reinstalled it and the key wasn't aligned correctly?
WHEN SHOULD TIMING BELT BE CHANGED ON A 2000 TOYOTA 4RUNNER SR5? talktoenock@comcast.net
The 4.0L V6 doesn't use a timing belt, the 4.7 V8 does and under normal driving conditions require the timing belt be changed at 90,000 mile intervals.
you go to a mechanic and change*
changed camshaft and crankshaft sensors in 2005 toyota tacoma 6 clyinder and now it wont start any idea what to try next
Check to see if the wiring is damaged.
yes it does, I had mine changed this year.
On my "99" it is 17 MM. I've never changed a seal.
dosent have to be changed,if it has id get a mechanic to do it.
Is it worth it to change if I want to drive it up to 175k miles?
i would change it when i change the timing belt, about every 70,000 miles
Chevy in 1977 changed the rear main oil seal to a one piece seal. the older crankshaft wont work.
There are many mechanic stores and garages where a person can get motor oil changed for a vehicle. An example of a place where motor can be changed is Midas.