Motor has a knock to it since I've owned it. Probably from the mileage.
First problem, the truck had no heat, replaced thermostat. Simple fix.
Right when I bought the truck it had absolutley zero power, originally thought it was the nature of the 5 liter motor chevy put in it. Turned out to be a combination of bad spark plugs, badly work cap and rotor, worn out plug wires, an air filter that had 1998 written on the rubber casing with a yellow marker, and a fuel filter.
Truck still had no power and the catalytic converter was rattling, had it gutted at the shop I worked at.
After that the truck left me stranded twice. The first time the peacock valve on the bottom of the radiator let go, since GM decided to use plastic screws, the screw cracked and blew out on my way to school one day, leaving the truck to be towed. The second time the truck blew a brake line and I hit the car infront of me. Thank god the kid didn't care and drove off after inspecting the damage. The truck had to be towed from there. Thank you AAA.
Truck was getting horrible gas mileage and still running a bit rich (could see black smoke coming from the exhaust), had a brand new catalytic converter put on.
Truck began running extremley rich and loaded up to the point that it would stall out and blow black smoke like a diesel. Did the routine tune up maintaience, but that still didn't solve any problems. Had a new cat. put on, still didn't solve problems. Replaced all the 02 sensors, map sensor, temp switch, tps sensor and coil. Still no fix. Unplugged mass air flow sensor and the problem was solved, put a new mass air flow sensor on from the junk yard for $52.
Windshield wiper motor decided it wanted to die, replaced that for 40 bucks from junk yard.
Drivers door handle, both inside and outside broke, replaced both for under 50 bucks from junkyard.
Door hinge pins on drivers door are badly worn, as this is a common problem on these trucks. Have the hinge pin and bushing kit, but still haven't put it on.
The truck had a lot of play in the steering and was almost impossible to keep in a straight line on the highway. Replaced pitman arm with a brand new one. Within 5,000 miles it wore out again and am now having the same problem.
Both upper and lower ball joints on both sides of the truck are badly worn, drivers side is so bad that the front wheel hits the lower control arm.
Brakes are horrible, actually they are disgraceful, my father has the same truck and the brakes are just as bad. On the highway you have to pick a lane if the traffic infront of you stops suddenly. Everythings been replaced by either me or the previous owner, still nothing fixes it.