Mechanics

ENGINE KNOKING,VIBRATING

2008 Hyundai Accent • 150,000 miles

Respected Sir, when I start my car engine vibrate and engine not run smooth at 900rpm but in 11,000rpm engine run smooth what is the problem iam unabel to understand hopping a best solution from your side, waiting for your reply.

Thanking you,
Yours faithfully mohammed salim.
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Mohammed salim
September 28, 2011.



Check for vacuum leaks. Check for issues with the idle air control valve. If the check engine light is on, have the computer scanned to identify trouble codes.



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