Step 3 » GENERAL learning environment Category Tr

GENERAL Learning Environment Category Tr
Question 550 of 802

What indicates the running irregular of the engine at idle, with misfires in the exhaust and difficult starting, especially in winter?

A the presence of carbon deposits on the exhaust valve;
B the loosening of the engine mounting buffers on the chassis;
C the exhaust muffler is perforated.

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