My car was running fine when suddenly it won't start. It has a new battery, so that's now it. It seems like it's in the ignition or something. It's not making a sound when I try to start it, but all o

Asked by Nov 14, 2014 at 05:57 PM about the Pontiac Vibe

Question type: Maintenance & Repair

15 Answers


Are the connections to the battery, starter and fuse box ALL clean and tight?



It's either going to be the starter, the battery or a loose connection.

its not the batter we just bought it on wednesday theres a noise when we try to start it kind of like a humming not clicking though


Where is the humming noise coming from?

engine area


Ok then its going to be the connections at the starter or the starter itself.

would that just shut the car off while driving down the road?


No. Why?

thats what happened it shut off while driving and then wouldnt start back up sorry it cut that part off the main question


Oh well now that could be a seized up engine. The timing belt could have broke and cleaned off the valves. Something internal has let loose.

1 people found this helpful.

where should we start looking


Take the serpentine belt off and put a very large breaker bar on the bolt of the crank and see if you can get the engine to move at all. If not its seized up.

1 people found this helpful.

thank you

For those with ecm issues I think I found the problem - bad diodes especially the one im pointing to with my pencil. I have a direct short across this diode but without remiving it from the board i cant be sure as other electronics could be at fault. Can anyone check their diodes. See photo. I fixed my 2008 vibe by replacing from scrapped $40. put a paperclip into obdii connector and left it for 45 mins then let it idle for an hour to relearn and No more issues and service engine light went out. Now i look at old computer and maybe find issue is with diodes.

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