2008 Pontiac Gp 3.8L stalling problem

Jasmine1988

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When I drive my car randomly dies I can start it back up but he keep dying out also when I reverse my car shakes back and fourth and then dies out also my rpm needles jumps up and down . Can anyone help me to solve the issue ? Pleaseeee!
 

melsg5

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Do you have a check engine light on?
Are you upto date with maintenance, plugs, filters, etc.?
 

tobybill

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crankshaft position sensor
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Dan_in_WA

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IIRC a bad crankshaft position sensor won’t throw a code if it fails. It’s like a heartbeat signal and is the only way the PCM knows the engine is turning over. Don’t know if that’s true for all makes.

Please correct me if I’m wrong.
 
G

G-211147

IIRC a bad crankshaft position sensor won’t throw a code if it fails. It’s like a heartbeat signal and is the only way the PCM knows the engine is turning over. Don’t know if that’s true for all makes.

Please correct me if I’m wrong.
Thanks
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