Replace right rear catalytic converter after having a diagnostic for P0420 CEL and the vehicle was shaking violently at 1500 RPMS. Paid the dealer ship $1200. Leave the lot, start hearing a loud vibration and drone. Take it back, the pipe was resting on the frame rail. So they fixed that. Then the CEL comes back on. P0406. Cleaned EGR. Then P0430 and C121C popped up. Replacing EGR now. Hope that fixes it.
Less than 2 weeks after replacing the catalytic converter the check engine light was back on. Into the shop. Told that the 2nd catalytic converter (which was "just fine" last month) is now not functioning. Took a week to get the part and fix the problem - dealership had the car the whole time. Wow.
- Laurel D.,
Vancouver, WA, US
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Replace right rear catalytic converter after having a diagnostic for P0420 CEL and the vehicle was shaking violently at 1500 RPMS. Paid the dealer ship $1200. Leave the lot, start hearing a loud vibration and drone. Take it back, the pipe was resting on the frame rail. So they fixed that. Then the CEL comes back on. P0406. Cleaned EGR. Then P0430 and C121C popped up. Replacing EGR now. Hope that fixes it.
- Mike W., New Florence, PA, US