Is it suppose pop a code when truck misfires?

 

90,000

 

yea it will throw a code if the misfire is bad enough and i think its time for a plug change...and clean the MAF sensor too and throw in a new air filter

 

Ok thanks I'll get on that. Has a k&n and just did maf so it must be the plugs Hopefully not the tranny that would sucks !!! Thanks for your opinions

 

I have a 2004 with about 103,000 and lately i have had the same issue. I changed tranny oil, rear diff fluid, new filter, but have not done plugs. I do not get any codes thrown, but i have just been driving around town with O/D off. i am hoping to do plugs soon and i hope that this the issue. Otherwise i am afraid it is the tranny.