Check Engine light came on caused by a burned out sensor on the catalytic converter. The brake "slave" cylinder went out, but she was 10 yrs old when I got her. Gasket on the valve cover, again, just age I think. Nothing else has "gone wrong". On my own volition I changed the timing chain/gears at 100K, replaced the exhaust system up to the manifold (* this "special" edition came from Canada with an exhaust manifold/header pipe combo that I can't even find in Japan. I hope it never cracks). Doing the rotors, drums and Seat arrangement awesome as I'm 6'4" and I feel quite comfy, compared to Toyota extracab trucks.
All in all- awesome. Could definitely use a little more Ooomph, my old toyota would kill this one in a race, but dependable and starts everyday. I'm in Germany, and she's parked outside, but I've never had a cold start problem. Burns very little oil. Good traction in the snow as well, with a 100lb weight and a shell on the back.
No, they are not all that good... Now that is... You see Ford bought them out in the mid 1990's and ever since they are junk compared to the jewels they used to be...
The above comment is true, Ford did buy Mazda out, but I know for sure that any Mazda truck that is not above a B2200 has a Mazda engine, and is basically the same old truck Mazda came out with. The 4X4's B2400 and so on are basically a Ford Ranger.