Two problems related to check engine light on have been reported for the 2000 GMC Sierra. The most recently reported issues are listed below.
Died on highway, cranked but wouldn't start, ended up being crankshaft position sensor, distributor cap, ignition rotor, crankshaft went out and burnt up the other two. Few days later happened again, died on highway, crank but won't start, had to replace distributor cap, ignition rotor, again with ignition coil. Caused 2 tow charges, now check engine light is on and the catalytic converter has gone out.
While driving engine warning light will randomly flash on and off. Dealership cannot locate the problem. 85 kilometers.