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Engine Knocks Only When Cold
Knocking only when cold happens from piston slap, thick oil or loose timing parts that quiet down as metal expands and lubrication improves
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Engine Loses Power When Hot
Loss of power when hot comes from heat-soaked sensors, weak fuel pumps or ignition components that fail once temperatures rise above normal
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Engine Runs Rich – Causes
An engine that runs rich produces fuel smell, rough idle and black smoke due to bad injectors, failed sensors or restricted airflow causing excess fuel
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Engine Hesitation at Low Speed
Hesitation at low speed occurs when ignition, fueling or airflow sensors provide unstable signals that disrupt smooth acceleration from light throttle
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Engine Noise After Timing Chain Replacement
Engine noise after timing chain replacement may result from incorrect tension, misaligned guides or new parts settling before proper oil circulation
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Oil Leak Smell After Engine Off
An oil leak smell after shutdown comes from oil dripping onto hot parts like exhaust manifolds, producing a burnt odor as the engine cools
