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 GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
Type Your Chevy Question Here...
GM Tech (Cam) is online now
A new question is answered every 9 seconds

Will start but not idle when cold. And message center going

Customer Question

Will start but not idle when cold. And message center going from Low Battery to security to low fuel. Also no bright light indicator or tow haul or temp or fuel gauge. No service engine codes
JA: How old is the battery? And have you tested it with a voltmeter?
Customer: Not sure on age but starts truck fine every time
JA: What is the model/year of your Chevy?
Customer: 99 5.3 two wheel drive extended cab
JA: What year is your Cab?
Customer: Cab?
JA: Are you fixing your Cab yourself? What have you tried so far?
Customer: Cab?
JA: Anything else you want the mechanic to know before I connect you?
Customer: Nope
Submitted: 11 months ago.
Category: Chevy
Expert:  AMEDEE replied 11 months ago.

Hello and welcome!

My name isCustomerand I can assist you with your question.

Expert:  AMEDEE replied 11 months ago.

Did you still need help?

Are you looking for possible causes or would you like me to walk you through this diagnoses?

Would you be willing to speak on the phone?

Customer: replied 11 months ago.
Customer: replied 11 months ago.
I've switched the p c m and instrument cluster. Neither is the problem
Expert:  AMEDEE replied 11 months ago.

Thank you for that information.

What is the battery voltage at when this happens?

Customer: replied 11 months ago.
Expert:  AMEDEE replied 11 months ago.

So the alternator is not charging?

Expert:  AMEDEE replied 11 months ago.

If the alternator is not charging, nothing electrical will function normally on the vehicle. The charging system issue would need to be diagnosed and fixed first before moving on to other things..