How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Your Own Question
Ron, ASE Certified Technician
Category: Chevy
Satisfied Customers: 35851
Experience:  35 years experience with ASE Certs
Type Your Chevy Question Here...
Ron is online now
A new question is answered every 9 seconds

I disonnected the ecm harnesses to other parts. When i

Customer Question

Customer: i disonnected the ecm harnesses for access to other parts. When i reconnected the harnesses now it will not crank. Battery is good & starter is good
JA: Thanks. Can you give me any more details about your issue?
Customer: it was running fine. A shifter cable broke & i removed the ecm for access. I reconnected the ecm harness now it will not crank. I checked all associated fuses & they are good
JA: OK got it. Last thing — JustAnswer charges a fee (generally around $18) to post your type of question to Chevy Experts (you only pay if satisfied). There are a couple customers ahead of you. Are you willing to wait a bit?
Customer: ok
JA: OK. Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Chevy
Expert:  Ron replied 1 year ago.

Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

In order to be able to try and help you we need to know what you are working on, year, make and model as well as engine size. One other thing you need to do is scan the computer system as well and see if there are any fault codes setting. Post back with complete details and we can work from there.

Customer: replied 1 year ago.
Im working on a 2008 HHR SS. Manual trans. 2.0 eng. I am getting a scanner to check for faults. Will contact you assp. Thank you for your response.
Expert:  Ron replied 1 year ago.

Okay let me know and we can work from there.

Customer: replied 1 year ago.
Good morning Ron
I checked for faults & found P0627. I erased it but still doesn't crank. Fault did not come back. Just to let you know. I have checked the starter with a probe it does crank. The battery is 6 months old & I checked it. I again checked all ignition and ECM related fuses, all good with power at both sides of fuses with ignition on. I have swapped relays also. When I turn the key to attempt starting it the engine icon is lit & no other icons are on when holding the key in the start position
Expert:  Ron replied 1 year ago.

I am wondering if your keys lost there programming when you disconnected the ECM. I would start with performing the relearn procedure. See the steps to do so in the link below. Copy and paste the link to your browser to open and view them.

Customer: replied 1 year ago.
I will try it & let you know what happens. Thanks
Expert:  Ron replied 1 year ago.

Okay, Im here if needed. Good luck.