Rough idle issue
Just got my jeep back from the shop after windshield fluid pump needed replacing, the jeep is 2 weeks old and they had it 2 days to fix the pump and now... When I'm at a stop and take my foot off the break (my Jeep is automatic) and before I step on the gas the car slowly moves forward, the problem is I feel this vibration, It feels like the idle is slightly to slow/low so the car labors/vibrates a little. (Sort of like on a hot day when you turn on the air conditioner sometimes the idle will drop for a few seconds but this is continuous until I step on the gas) I don’t want to go back to the dealer again, is there an easy way for me to fix this,,, maybe manually adjust the resting idle speed? Any help would be great.