I am new to this forum but hope that people can help me with my problem. When I drive my truck my gage light comes on. The volts on my battery go down to 8. I changed out batteries on Saturday thinking maybe that is the problem. Both batteries were cracked and leaking so thought it would be best to replace both to them. I drove my truck and it still did the same thing with the gage light. Went back to AutoZone and they checked everything and regulator failed. We replaced the alternator and then drove truck again and the light came back on. Took truck back to Autozone and they said it is prolly the ECM. I contacted my local Dodge Dealership and they quoted me $2,000 for the part itself!!! I have done some online searching and have found refurbished ECMs that I can get $500 to $800. I found a place called Auto Module Source? Are they trustworthy? They say they program the part for you and send you part and you should be able to plug it in and it should work. What are y'alls thoughts and has anyone ever replaced their own ECM with a ECM part from online? I just don' thave $2,000 laying around

 

Also my truck starts fine. When I start the truck my gage will be maybe around 12 or so. When I drive it, it is fine and then all of a sudden the gage will drop to 8 and the gage light will come on. Is it even an ECM issue? It seems to drive fine. I had my boyfriend check all electrical connections and he said they seem fine.

Thanks!

 

If anyone could provide any insight I would appreciate it! I just don't want to be stuck on the side of the road.

 

You're posting in the wrong section, you want to post in the diesel section..... they will be able to better help you over there.

 

Thanks for letting me know! I wasn't quite sure where to post here.

 

No problem, good luck finding your answer! you can also click on "report a post" on your original post and just ask a moderator to move it for you.