I have a 2013 Jeep wrangler Sahara unlimited. I started noticing a fuel smell anytime I turned my heat on. Thought I was going crazy so decided to look under the hood and the fuel smell was in the engine bay as well. No visible leaks just an irritating fuel smell. Decided to change fuel injectors cause it was running and idling a bit rough as well as long starting and it was due anyway. Changed those today and while doing them noticed that there was fuel that had gotten into the intake manifold and throttle body. After I got it back together I then went to turn Jeep back on. Again long started and fuel smell came back driving to work. If it sits, there is no fuel smell. Just while it runs. Fuel smell is stronger at an idle. It’s driving me absolutely nuts and I don’t know what else to do and don’t want to just start throwing parts at it cause that can get expensive real quick.

 

Welcome to JKF.

 

Check the black plastic fuel feed line that runs across the top of your engine, especially at the elbows as this line will crack over time. The first indication is strong fuel smell, as it progresses, you will notice fuel puddling up. I used JB weld as a temp. fix until I could get a replacement fuel line. Welcome aboard the forum !

 

Thank you! I am gonna have to take a look at that then. I only really smell a fuel smell while I am idling would a crack in the line cause it to smell like fuel all the time while the car is on though?

 

I would assume that you would smell fuel to some extent anytime the engine is running. You are smelling fuel at idle because the jeep is sitting still allowing the fumes to collect and bled into the cabin. I would check the fuel feed line for cracks.

 

If line is cracked the best way to fix is buy the line and end fittings and make it yourself. So you would install one end then run a piece of oversize sleeve over all but 2 " of the inner line then install second fitting. That takes care of rub through for as long as you want to own the vehicle.