Hello fellow Jeepers.....Just a follow up on my rough Idle and stalling issue....changed the AIC and couldn't believe how much carbon build-up...took the throttle body off because it was really bad and cleaned that up....took the crank vent tubes off and cleaned those up as well. No more rough idle...fuel mileage has improved a bit but now I have another question? The day before I did this work the RPM gauge was acting strange. It would drop to 1000rpm outta nowhere and when I gave it gas...no response and then it did with a 2-3 second delay and when I took my foot off the gas it would drop to 500 . I thought it was rectified after doing the repair but I have noticed the tach acting up slightly once in a while however the response when giving it gas is good.Then a couple days ago we had to go into the city.....half hour drive ...got to our destination 10 minutes later go to start and it stalls...start again it stalls...had to give the gas pedal a little tap and hold to prevent from stalling and all good...no issues all the way home.....this has happened twice now.....Map Sensor? Speed Sensor? Other than those minor hiccups all is as it should be . She still loves he Jeep...lol. I will be installing new plugs shortly and wanted to maybe get a heads up on another possible sensor replacement so I can give my partner a heads up. Oh...she has one concern that I think I explained correctly but to be honest I don't know.Passenger side on the firewall there is a rubber tube with a 90 degree bend pointing down there seems to be a bit of water draining from it.I told her it is probably a drain tube coming from the roof light bar and that put her at ease.Am I correct in that assumption?