check engine light

[jacobl]

I have a 2002 ford explorer xlt 4x4 with the 4.0L V6. It has a little over 107k miles and is changed with 5w-30 mobil 1 synthetic oil every 5k miles. Yesterday after i filled the fuel tank with 87 octane gas from the mobil station up the street. drove it a bit and the "service engine soon" light came on. What could have caused this to happen and what could be the problem?

Thanks for all your help!

 

[BrooklynBay]

The gas cap either wasn't tightened enough, or it was started, or running while refueling. Just make sure that it's tight.

 

[jacobl]

The gas cap is tight and the truck was not runnig when it was filled up with gas.

 

[jacobl]

the truck is running really crappy, and it accelerates like its pulling a heavy trailer and it is sort of chugging, could it be the fuel filter? It idles smooth.

 

[jacobl]

help please! going on 5 hour trip i a few days!

 

[BrooklynBay]

AutoZone could read the code for free.

 

[jacobl]

I got the trouble code read and it states "EGR flow insufficient". How do i fix this? What do i need to replace? Will i damage my truck if i still drive it for a couple weeks with this problem?

Thanks for your help!

 

[BrooklynBay]

That is the DPFE sensor. Check this thread: http://www.explorerforum.com/forums/showthread.php?t=164517

 

[jacobl]

Went to order the sensor today. Autozone is out of stock and their vendor is out of stock. Will driving my truck for a week with the sensor messed up damage my engine?

 

[BrooklynBay]

Try another auto parts store like Rock Auto, or Pep Boys. How much does it cost?

 

[jacobl]

It costs about 46 dollars. I will try carquest tomorrow.

 

[BrooklynBay]

Some stores may not have it in stock, but another branch of the same store would.

 

[jacobl]

well, i got a new sensor from the dealership. It cost me 73 dollars. The sensor went in easy and the "service engine soon" light hasn't come back on.

 

[BrooklynBay]

Thanks for the update. I guess nobody else had it in stock except for the dealer.