In theory, it could, but in all practicality, it would not. The four main causes of misfires are faulty sparkplugs, bad spark plug wires, bad fuel injectors or a loss of compression.
There is no adjustment on the spring / Tensioner. You either have the wrong belt are the tensioner itself is bad. Replace tensioner are belt.
Engine used a serpentine belt, with a spring-loaded tensioner. You cannot tighten the belt. If the belt is slipping, either one of the driven components is going bad and dragging the belt, or the tensioner is bad.
Not really. This sounds like a bad ground on the battery or the regulator.
belt tensioner is bad or one of your pulleys that the belt rides on is bad or out of alignment.
no, unless the tensioner is bad, other than that just the belt.
usually the serp. belt will shed because it shifts on one of the ridged pulleys. The most common cause of this is a failing pulley or a bad tensioner.
Yes, if the belt tension is not tight enough it won't spin the radiator fan due to slippage. Replace the tensioner pulley.
The belt tensioner is probably bad.
GM tensioners are spring loaded to provide the correct tension on the serpentine belt. If the belt is loose, either the tensioner is bad or you're using the wrong belt.
Sounds like a loose accessory belt or a bad belt tensioner.
Yes, a bad belt or tensioner can be related to a rough idle. If it is not tight enough, or worn it is not able to run as smoothly as needed to keep the engine running smooth.
It could cause it. It could be something else though. It could also be a worn-out tensioner.