patrickkaiser17
GrandlandX Defective Throttle Valve
Summary of the thread
A 2021 Vauxhall GrandlandX hybrid is experiencing reduced engine power and a check engine light, suspected to be due to a defective throttle valve. Possible causes include issues with the accelerator pedal module or internal electronics. A similar issue was resolved by checking the throttle sensor and electronics, leading to a repair of the throttle valve.
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4 comment(s)
patrickkaiser17 (community.author)
Thank you for your suggestion! Could you elaborate a bit more on how you diagnosed the issue with your GrandlandX? Was the check engine light also on for you? I am not very confident with these things.
lukasdunkel81
Yeah, the check engine light was on, giving me the same scare. Honestly, I took it straight to a workshop. They mentioned the throttle sensor and electronics inside. I wouldn't risk messing with it myself if you're not sure.
patrickkaiser17 (community.author)
Appreciate the advice! I visited a local mechanic. Turns out, the throttle valve was indeed defective, just as suspected. The repair cost me around 265€. Thank you for sharing your experience!
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VAUXHALL
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GRANDLANDX
lukasdunkel81
Hey, I had something similar with my GrandlandX, although I didn't check the mileage. Did you check the air flow around the throttle body? Could be a dirty throttle sensor messing with the engine idling.