A technician repaired a cold-start and hard-starting problem by replacing the secondary ignition wires and spark plugs. After the repair, the vehicle failed an emission test for high CO and HC levels. Technician A says a restriction in the fuel delivery system such as the fuel filter could be the problem. Technician B says that the engine oil could be contaminated with fuel. Who is correct?

A. A only
B. B only
C. both A and B
D. neither A nor B


Answer: B

Trades & Technology

You might also like to view...

What is dimension stone?

What will be an ideal response?

Trades & Technology

In a panelboard, the black circuit conductor in a lighting circuit is connected to a(n) _____.

a. neutral bus b. grounding bus c. bonding jumper d. overcurrent protection device

Trades & Technology

In a capacitive circuit, the voltage lags 90 degrees behind the current, so its voltage vector (EC) is drawn ____.

A. upward B. downward C. leftward D. rightward

Trades & Technology

Answer the following statement(s) true (T) or false (F)

1. A position tolerance applied to a feature of size affects its size. 2. A position tolerance is always applied to a feature of size or pattern of features of size. 3. Basic dimensions are required to locate and orient the feature(s) of size relative to the datum features referenced in the feature control frame. 4. Where a position tolerance applies at RFS, it is interpreted as a boundary tolerance zone. 5. In an RFS application, the position tolerance zone is a constant value, regardless of the size of the toleranced feature of size.

Trades & Technology