The first step to take after your Jeep has stalled is to pop the hood and get a look at your air cleaner. That means opening the airbox, or just examining your air filter if you have a conical or old-school round air filter. Look for any evidence of water getting on or in the air filter or airbox. If there is water in the bottom of the airbox, you may be OK. If there is water on the filter, on the top of the airbox, or bottom of the round air filter housing or carburetor, you probably got some water in the engine. That’s bad.