2011 ram 1500 , crew cab Laramie hemi , automatic trans, 57,700 miles . 2 and half weeks ago i had the misfire code on cyclinder #2 . I just installed 2 new champion plugs and a coil pak . All good . Yesterday the servo 4wheel drive light came on so did check engine light . Today when I moved truck in driveway they were both off. I was wondering if anyone else has had this. I bought truck new thank you

 

Since the Service 4WD light came on there should be a stored code, even though the light is not currently active. The easiest means of determining the likely cause would probably be to find someone with a professional grade scan tool to pull the diagnostic code for the 4WD system.

-Rod

 

Thanks I will go to O'Reilly's and see what they say . I really appreciate your help.

 

As soon as I started to town the servo light 4 wheel drive came back on but I noticed the temp gauge was reading on cold side the whole 6 miles .pulled into o'Reilly went inside came back when he turn on key it all cleared but he got a code for a bad coolant temperature sensor. So I got one will change it tomorrow. But everything' was good pulled boat home .Again thank you