GMC Troubleshooting Questions? Ask a Mechanic for Answers
Hi, welcome to Just Answer. I’m Ron and I’ll be helping youtoday.Before we get started though, Please understand that I don't knowyour skill level or tools you have to assist us. Also understand thatI can't see, smell, hear, or touch the vehicle either, so patience isappreciated. JA is a great Q/A site, but it does NOT replace arepair shop.My goal is to make you happy and get a great rating in return formy time. Sometimes I have to give you bad news that I know youdidn’t want to hear, so please don’t shoot the messenger.
What he did for you won't change the issue you're having. You need to have the truck attached to a scan tool to read all the codes that got stored, then the data needs to be read to see values that pertain to the codes/problems. Please keep me posted of those results.
Okay, if that's what they confirmed, then go with that. I just like to see more testing done before replacing a computer, but they may have already done it.
Thanks again and please remember to rate me 5 stars and keep this link in case you need me again later on.
Not if the computer isn't bad, no. That's why I say that I exhaust every test possible prior to replacing the computer.