stalling problems are usually caused by problems with the ignition system, the fuel system, or the air intake system. To narrow down exactly what’s wreaking havoc in your engine, use an OBD2 scanner to identify the issue.
owner with this issue—stalling is one of the most common problems Sierra owners experience. Stalling can be caused by a myriad of issues. Aside from the three listed above, some of the other usual suspects are:
A dirty throttle body
Lack of oil in the engine
Locked torque converter
Armed with your error code from your OBD2 scanner, you’ll have a much clearer picture of what’s going on under the hood of your GMC Sierra. And, when you shop for your
, you’ll get a much better idea of how much you’re overpaying for your insurance.
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