Q: My Pontiac G6 won't crank and wont start

asked by on

I have a pontiac G6 2008 and battery was bad so i had someone switch them out for me only he hooked cables up wrong and it spit smoke out the radiator. It cranked after that snd i let ot run for sbout 5 min and turned it off. Now everything powered works but it wont turn over and the odometer reads ERROR. I had a diagnostic scanner put on it and the one code was 0100 i think for the ECM (NO COMMUNICATION) Do u think my ecm is fried and do i need to get me another one to fix this mess?

My car has 180000 miles.
My car has an automatic transmission.

I believe your "no crank" issue is the passlock security system has locked things down because of what it perceived as a "battery swap". If the car restarted after the jump as you indicate, the ECM is probably OK. The P0100 code is a mass airflow (MAF) problem code. The odometer "error" message may be indicative of other issues. Your more significant problem now is likely the passlock problem. It may require a GM Tec II tool to determine what security problem is locking you out now. To avoid any unnecessary repairs, consider having one of our mobile technicians come to your home to diagnose the no start condition and help you fix it accordingly.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My Pontiac G6 won't crank and wont start

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My gear when in park doesn't allow ME ro take my key out I have to push up real hard to take out the key..

Hello, thank you for writing in. We need to determine if the key is getting stuck in the ignition cylinder, or if the shifter is not registering as being in park. First, make sure nothing is stuck in the way...

Q: My 2006 Pontiac g6 2.4l is losing fuel pressure and is taking longer to start, also smell gas

You will need to have the complete fuel system checked for line or pump leaks to find cause of fuel smell first since you may have a leaking pressure line or top of fuel pump on tank. Once leak is...

Q: Car wont start but battery is new and only my headlights work nothing else in the car shows power

Hello there, many common faults will cause your 1995 Nissan Quest to have problems starting. You did great in replacing the battery as this is the most common fault of all time for no start conditions. There are a few...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...