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John, Master A.S.E Automotive technician
Category: Chevy
Satisfied Customers: 9176
Experience:  A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
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Cobalt SS: shuts down..down while driving, just like turning..ignition

Resolved Question:

My Cobalt SS shuts down while driving, just like turning off the ignition. What might cause this?
Submitted: 8 years ago.
Category: Chevy
Expert:  John replied 8 years ago.


This problem can be a faulty ignition switch,cutting the power to one of the ignition powered circuits that operate engine controls.

It can be an ignition system failure,in the module or computer.This is sometimes a communication error that causes this or a faulty input sensor.

I would suggest driving to duplicate this problem with a passenger that is viewing computer data with a scan tool .This is very helpful when trying to track down an intermitten problem.Check for failure codes that may help also.

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