New to the Jeep game but love mine so far.

Need help.... have a hiccup when I am driving. When I hit a bump on the paved roads I get a hiccup like it is not getting fuel. It doesn't stall and only happens when driving not at idle.

Have three codes all are evap codes P0455 P0442 P0456. All I have read is that it could be fuel cap or leak in evap system.

I did run the tank low the other day..... Was wondering if it might have sucked up some crap and blocking the filter?

Any help would be great.

2003 TJ 4.0L 5 Speed

 

Got the same tj as u, try some injector cleaner for the next few fill ups (I like the Cdn Tire brand- red stuff)
Not much u can do on a fuel filter change as the rascal is inside the tank and not something you want to mess with. Try that and make sure the cap is always tight and to clear the codes you can disconnect the battery for say 20 minutes and it will reset itself.

 

Manually deleted - Spam

 

Found out what the problem was today...... a wire was bad running from the Cranky Sensor...... all fixed now.