sarahswift1

Terracan check engine light and power loss

I'm having trouble with my 2003 Hyundai Terracan (gasoline engine). The check engine light came on, and I've noticed a significant reduction in engine power. Plus, there's smoke coming out when I accelerate, which is concerning. Could this be a crankcase ventilation valve malfunction? Anyone experienced something similar?

A 2003 Hyundai Terracan experienced a check engine light, power loss, and smoke during acceleration, potentially due to a crankcase ventilation valve malfunction. The symptoms included rough idling, suggesting a ventilation issue. Replacing the defective valve resolved the problem, restoring the vehicle's performance.

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4 comment(s)

That sounds rough! I had similar symptoms with my old Opel Corsa – check engine light, sluggish acceleration. Could very well be a ventilation issue like you're thinking. Is the idle rough too?

Interesting! Yes, the idle is a bit rough, now that you mention it. Did replacing the ventilation fix your Opel? Did you have to take it to a shop?

Yep, replacing a defective valve sorted out the emissions issue on the Corsa immediately. Given the symptoms, you might want to get it checked out by a professional. Seems like a trip to the workshop is unavoidable, unfortunately!

Thanks for the insight! I had the Terracan checked, and you were spot on – it was indeed a defective crankcase ventilation. Had it replaced, and the total repair came to 360€. Runs like a charm now!

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HYUNDAI

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TERRACAN