An oscilloscope test shows firing lines the same, but abnormally high. This is the result of:
A. A rich air/fuel mixture.
B. Low cylinder compression.
C. A lean air/fuel mixture.
D. The spark plug air gap being too close.
Answer: C
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To manually defrost a frozen evaporator coil, technicians should:
A) Use a heat gun to accelerate the melting of the ice. B) Chip away the ice from the coil using a tool designed for chipping ice. C) Use any available sharp object to chip away ice from the coil. D) Spray the ice with liquid refrigerant, which will boil and melt the ice.
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Fill in the blank(s) with the appropriate word(s).
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