Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hello. Most likely you have an ignition coil that is beginning to fail. You may want to replace your spark plugs depending on when they were changed last. 5.7 Hemi engines do require more frequent spark plug replacement.
I would recommend replacing all the spark plugs if it's been a while, and, if it were my truck I would replace the #3 ignition coil since that's the most common cause of a misfire.
Sounds good. I'll be around.