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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Pontiac Technician
Category: Pontiac
Satisfied Customers: 2378
Experience:  GM Grand Master Technician 2007. 14 years experience.
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The battery ran dead and someone tried to jump start it off

Customer Question

the battery ran dead and someone tried to jump start it off another battery but hooked cables backwards and the other battery started smoking before he realized and jerked cables off and now when i tried to start it it cranks just fine but wont start and i checked the plugs they aint getting any fire so replaced coil and still doing the same thing
JA: What is the make/model/year of your car?
Customer: 08 pontiac g6 3.5 liter
JA: Are you fixing your G6 yourself? What have you tried so far?
Customer: i listened for the fuel pump and it comes on, i tried to jump start it the right way still didnt do nothing ive hooked obd2 scanner to it and it shows no codes and yes im trying to fix it myself
JA: Have you ever replaced the fuel pump, or is this the original?
Customer: i just bought the car had it maybe a month
JA: Anything else you want the mechanic to know before I connect you?
Customer: um no i think thats it
Submitted: 5 months ago.
Category: Pontiac
Expert:  Chad Farhat replied 5 months ago.

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Expert:  Chad Farhat replied 5 months ago.

Hey how are you

The most possible cause for no spark on this model is the CKP Crank shaft position sensor , has been replaced or check for power and signal

do you have a capable scanner to test signal ? and test light to test for power

at the coils , what are you missing power or ground or neither ?

Please let me know

Thank You

Chad Farhat

ASE Certified Technician