07-28-2019,
Hello all I have a 2007 Pete with a cm 870 in it I bought the truck awhile back it has a different 870 than what came in in and ive been having little run issues with it and was gonna have the programming checked to make sure that they didn't just slap the old ecm on a totally different motor... Well when I went hunting for the ESN I found that the tag on the valve cover is gone my question is is that ESN stamped anywhere on the block ? How can I figure out what programing belongs in it with the ESN