I replaced the timing belt on a 1999 Tacoma with the 3.4 liter V-6. It started quickly but ran a little rough. I was careful to align the cam gears and crank timing marks. Then I noticed an arcing sound and ozone odor. I had not reconnected all of the driver side spark plugs. It ran way too well on three cylinders. I think the small Toyota truck especially two wheel drive stick shift four cylinder is one of my favorite all general purpose vehicles. They drive so nicely. At some point though, the Tacoma has become too large. The 1999 I worked on is the right size.