HEY THERE..
SO I HAVE A 2000DURANGO SLT 4 X 4 THAT I RECENTLY POSTED HAD A CHECK ENGINE LIGHT ON AND A SMELL OF GAS IN THRU THE AIR VENTS INSIDE THE TRUCK-SO NOW A LOCAL MECHANIC CHANGED MY OXYGEN SENSORS, ADDED NEW SPARK PLUGS(MINE WERE BLACKENED AND SHOT)AND ALSO ADDED A NEW AIR FILTER-THE TRUCK NOW APPEARS TO BE RUNNING FINE AS THE CHECK ENGINE LIGHT HASNT COME BACK AND THE GAS MILEAGE(WHICH WAS HORRIFIC-MORE THAN USUAL!!)IS BACK TO NORMAL-I STILL AM HOWEVER EXPIERIENCING THAT SLIGHT SMELL OF GAS COMING THRU-IS THIS SOMETHING THAT WILL DISSAPATE IN TIME OR IS THERE SOMETHING WRONG THE MECHANIC MISSED? ANY IDEAS?

 

I know this is an old thread, but I have the same gas smell coming through the air after changing my plugs as well. Help?

 

Im gonna take a shot in the dark, but could it be because your plugs were so bad before and now the vehicle is getting too rich? I know some cars you can disconnect the battery and reset the computer and have it learn your driving style. Just my $.02

 

Could be a vacuum leak causing it to run lean. (just taking a shot in the dark)

 

Reset the PCM. Here are instructions:
Engine Code Index (Check Engine Light?)

 

Thanks guys, i'll check this out..

 

Okay, I have done the restart Hydra suggested and I still have that gas smell. Therefore, I am assuming I need to be looking at vacuum lines now?

 

STOP RIGHT THERE! make sure there isnt an exhaust leak under the hood, or close to under the hood. THIS WILL CAUSE A GAS FUME SMELL IN THE CAB, but other than that, im clueless lol

 

Shop could have not tightned a plug enough or installed the wrong plugs. Let the PCM fully reset as I instructed. Most likely you are burning rich and it will take time for the computer to figure it out. About 48 miles and 12 starts. Do as instructed in the post.

You can check all vacuum lines leading into the air hat because people forget to reconnect them.

The last thing you can do is to find out what spark plugs the shop installed? What motor are we working on?