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?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
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: Q: Mass Air flow sensor

Hi There, What you are describing sounds like a dirty or faulty mass air flow sensor. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays...

Q: My car is jerking back and forth at high speeds

The first thing that needs to be done is to connect a scanner to the car and retrieve the code. This information will lead a technician down a diagnostic path. There is an important distinction that needs to be made...

Q: No spark 1998 Jeep Grand Cherokee

Hello - your symptoms suggest someone may have "worked on" this without your awareness of what might have been done. Hate that! You will likely have to get out a voltmeter and start following the electrical path to the plugs....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...