Can service engine light come on intermittently if alternator is going bad?

Hello, the engine light usually does not have anything to do with a charging system issue. However, low electrical system voltage and amperage can also cause check engine lights to come on, as certain modules are too low in electrical power to operate properly. I would say, though, that you clearly have a concern with engine performance that requires troubleshooting to resolve. Seek guidance at a local shop near you to find out what's going on. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops