I purchased a 2001 Silverado Z71 with 126K miles from a buddy of mine who had it sitting outside of his 4x4 shop for a good while. Prior to him getting it, it had been parked since around 2014. Truck belonged to a co-worker of ours so know the history on it. I purchased the truck for $500 with the intentions of trying to fix it and flip it for some extra cash for my Fox Body. Before trying to start the truck we drained the fuel tank and replaced the fuel filter, air filter, spark plugs and wires. Had a new fuel pump installed less than 2 years ago. When I tried firing it up I quickly knew something was wrong. Truck was very loud and wouldn't run under it's own power. It was missing really bad. I looked under the truck and saw that someone stole the damn catalytic converters. They cut them clean off.
I knew the missing cats wouldn't cause the misfiring issue so I started troubleshooting everything I could, I didn't want to just start throwing parts at it due to trying to keep the cost down. After about a week or so of tinkering with it I finally got it started and running on it's own power. Turned out that the fuel rain and injectors were so plugged up that only 2 cylinders were firing and barley firing at that. This truck had been driving me nuts trying to figure out what the issue was. I was so happy when I finally got it running. I still have lots to do though. Have high fuel pressure which I believe is the return line, have a leak on one of the transmission cooler lines, coolant leak at the radiator hose connection and the exhaust to address. I did find a parts truck that I was able to remove the stock Y-pipe with catalytic converters for $50.
As of now I installed new tires and gave the wheels a coat of paint, replaced all the brake lines, hoses, calipers, rotors and pads. Found a hood from a parts truck to replace the one on the truck due to a rust spot. Also did the tune up parts. I'm into it as of today for about $2700.
Here is a video of when it was running horrible and after I swapped the fuel rail and injectors.
I knew the missing cats wouldn't cause the misfiring issue so I started troubleshooting everything I could, I didn't want to just start throwing parts at it due to trying to keep the cost down. After about a week or so of tinkering with it I finally got it started and running on it's own power. Turned out that the fuel rain and injectors were so plugged up that only 2 cylinders were firing and barley firing at that. This truck had been driving me nuts trying to figure out what the issue was. I was so happy when I finally got it running. I still have lots to do though. Have high fuel pressure which I believe is the return line, have a leak on one of the transmission cooler lines, coolant leak at the radiator hose connection and the exhaust to address. I did find a parts truck that I was able to remove the stock Y-pipe with catalytic converters for $50.
As of now I installed new tires and gave the wheels a coat of paint, replaced all the brake lines, hoses, calipers, rotors and pads. Found a hood from a parts truck to replace the one on the truck due to a rust spot. Also did the tune up parts. I'm into it as of today for about $2700.
Here is a video of when it was running horrible and after I swapped the fuel rail and injectors.