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Ann [662]
3 years ago
10

You're diagnosing a hard-starting vehicle and installing a fuel pressure gauge. When the engine is shut off, the fuel pressure d

rops rapidly. Technician A says that a fuel injector could be leaking. Technician B says that the fuel pump may have a defective check valve. Who is correct?
A. Both Technicians A and B
B. Technician A
C. Neither Technician A nor B
D. Technician B
Computers and Technology
1 answer:
Wewaii [24]3 years ago
7 0

Both technicians A and B

When the engine is shut off and the pump stops running, by default, the system should hold the residual for a few minutes. If the pressure starts dropping immediately, the vehicle may have a leaking injector, a leaky fuel pump check value, problems with the FPR itself, or a leaky fuel pressure regulator.  

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Answer:

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