Older Dodge Truck

From : justin s via carkb com

Q: suddenly without warning r8rfan exclaimed 03-jun-05 1100 pm yeah the gas cap is tight. funny thing this morning i put gas in it and noticed that it says if the cap isnt tight the check engine light could come on! when i got to work a guy i work with suggested unhooking the negative battery cable for a few minutes. i did and now the light isnt on. i then did the code again with the ignition and it came up p done. hopefully the problem is resolved thanks to all for your input. could be. if youve got a gas cap problem or something bigger itll be back. just be sure youre really crankin the cap when you put it on to eliminate that as a problem from now on. and yes p done means no codes. it took only a couple of days for the code to reappear on my dak though. i have a 2001 as well. if you get it checked out please post what they said/did here it may help me with the british jeep folks here the closest thing we have to dodge. jmc .