Juan Aguayo
Newbie
I have a 91 Silverado that i stopped using a while ago because i couldnt figure out what was wrong with it. Everything was working fine till one day i changed the spark plugs and i connected the cables back and 2 of them were connected to the wrong one. and i used it like that without realizing it was wrong. I then changed them back to the way the are supposed to go. It now runs without a lot of power, and after a while of being on it starts to idle slow and misfires. What could be Wrong with it?