Well...I have had my 2005 Dodge RAM 1500 4x4 SLT for about 2 months now and the check engine light came on yesterday. So I was like WTF? So I got home and figured I would check my Air Filter. It was kind of dirty so I will be buying a new one ASAP (Note: I live where there are a lot of dirt roads, so I check my filter once a month.) I turned it off and on and it still was lighting up so I decided to let it sit overnight and see what Happened he next morning. I checked it this morning and it was still lit up. So I took my positive off of the battery and let it sit for about 5 min. I reconnected it and started it again and it was off. (note: I also checked my gas cap prior to diconnecting the battery and it was still lighting up as well). It hasn't cae back on since....Just thought I would throw that ou there for you guys!

 

kind of need to know what kind of code it is.. could be range of things, and could just keep coming back.

 

Check out THIS thread and post your results....

 

what did you do before the check engine light came on?? ex. just got gas

 

Yeah, any time the CEL comes on you really wanna pull the codes and see exactly what it is so you know exactly what is going on with your truck.

 

Last oil change is usually odometer fed. Thats my 2 cts.By resetting the pcm, thats what you did incidently, You could have thrown off the mileage setting. For the next oil change.

 

Alright....well heres an update...not soon after I disconnected the battery and re connected it the light did go off...BUT I took a ride down to the gas station to grab a drink before headin to the lake and the light came on again. I have not messed with the battery since then. I don't have any idea what this could be because all of my gauges are good. My coolant is right, battery is right on, tranny is still strong...no loss of power...shifting like a champ so slips...no leaks...brand new oil...the only thing I can think of is maybe it has something to do with a fuel sensor or something. Maybe a bad gas cap? Does anyone know the going rate to get a diagnostic check?

 

i think some people said autzone does it for free?

 

Either go buy a tuner and have the ability to tune your truck and pull those CEL codes or go to autozone or someplace like there and have them connect an OBD scanner to the truck and pull the codes off for you. Write them down and post them back here.

 

Turn the ignition on and off 3 times in a row (without starting truck).

ie...

On/Off/On/Off/On and leave on the 3rd time. you should get a code in the form of Pxxxx pop up on your odometer.

Bring that code/codes back and well help ya out.