 I bought this truck new.  No problems until about 130000 mi.  Tachometer works when it wants now.  Timing chain guides wore out @130K, bent all the intake valves, fixed myself. Still a daily driver to work, has 144K on it now. Cannot get it to quit coding P1706 (park nuetral position switch on 5-speed manual). Dealer says to replace wiring harness, might solve problem.  Truck has been good, so I bought a 2007 and drive '98 to work daily.