Random stall, cut off.
I am working on a friend's 2005 Pontiac G6 3.5L, that sporadically stalls when coming to a stop. I've done some scouring through the forums and cannot find a related issue.
So far, no check engine light on, and it happens at very random times. I was beginning to suspect a throttle body or a shorted sensor are these common issues?
She first noticed that it stalled after having her oil changed, and I was only able to look at it later (2 weeks). among the other screwy things they did they over filled the oil 3 quarts. (even though this engine design/oil capacity (roughly4.5 quarts) hasnt changed in a long time) Corrected the oil level, and was beginning to believe that under certain circumstances this could cause the engine to stall. but a couple days later it stalled again.
So... after muddling through possible causes, I am beginning to think that the issue would have to be that due to the oil level, that some sort of coking or oil has contaminated a sensor or dirtied up the throttle body.
before I tear into the car. I would like to know if there are any common issues related to stalling that might be the root cause of the problem!