Toyota Repair: t100 runs rough, toyota t100, toyota dealer


Question
Hi, I have a Toyota T100, 1996, 4 cyl automatic 2.7L and it runs a bit rough.  A friend told me it is probably a bad valve.  It can still be driven, has a bit over 400,000 miles on it.  Is replacing a valve expensive? Thanks!

Answer
Yes it is, but without being there I can't comment on the problem. Nor do I advise listening to your friend unless they are very apt to working on your engine in particular one.
It's *not* common to drop a valve in any semi-modern Toyota. In general... If you've been changing your oil on schedule. It's yay far from un-heard of.

The mileage is very high, but I would take it to an independant mechanic, or a Toyota dealer to see what the cause is.