Discussion Starter · #1 ·
Hello I recently got my dads 1986 Nissan 720 4X4 running again. It was sitting for 12 years. I changed the spark plugs, the air filter, oil and oil filter. The carb was gummed up a bit. so i used carb cleaners and ran the truck to clean it out. It was running good for a couple months and now its stalling out. I thought it was the fuel pump so i changed the fuel filter and took apart the fuel pump and cleaned it. it seems to be working fine and was working fine when i first got it running because I had tested it then both off the truck and to see if fuel was getting to the engine. I've checked for vaccum leaks in the hoses. they seem to be fine as well. I've turned the idle up so it won't stall all the time and turned it down if its too high. But when i turn it up that causes it to have bad run on when you turn off the truck which is accompanied by a whining noise. I also had a cracked EGR tube which I replaced. If anyone has any idea what could be causing the stumbling idle and then stalling please let me know.