robinsmith10

Cobalt Exhaust Flap Issue

Got a weird one with my 2017 Chevrolet Cobalt, gasoline engine. Mileage is sitting pretty at 44895 km. The exhaust flaps seem to have given up the ghost. Error's stored in the memory, exhaust noise is louder than usual, and it sounds like a tractor after a cold start. Suspect it's the exhaust flap motor, but is there anything else I should be checking before I tear into it? Or am I barking up the wrong tree completely here?

A 2017 Chevrolet Cobalt is experiencing issues with its exhaust flaps, leading to increased noise and an error code. The primary suspect is a defective exhaust flap motor, but it's advised to check the wiring and connections for any electrical issues. If the flap is stuck, it could affect engine performance and cause exhaust blockage, making it important to address the problem promptly. Ultimately, a workshop visit confirmed the defective exhaust flap, and it was repaired.

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4 comment(s)

Sounds like a defective exhaust flap is the prime suspect, especially with those symptoms. Is the flap stuck open, maybe? That could explain the noise and error code. Have you checked the wiring and connections to the flap motor to rule out a simpler electrical issue?

Cheers for the quick reply. Wiring and connections look solid, no obvious damage. If the flap is indeed stuck, would that also impact engine performance, or would it mainly just be the noise? Just trying to gauge the urgency of getting this sorted.

Stuck flaps will definitely mess with engine performance eventually, potentially causing exhaust blockage if it's fully closed all the time. The noise alone justifies a look, but performance dips make it pressing. Probably time to visit the workshop.

For those interested: it was indeed a defective exhaust flap. Workshop visit confirmed it. Repair cost me 190€. Thanks for the advice, appreciated!

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CHEVROLET

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COBALT