WorksheetsEngine performance #3
Total questions: 5
Worksheet time: 3mins
While monitoring fuel pressure,the specification is 35 to 40 psi and the reading is 60 psi. what could be the problem
injectors are not opening
fuel pump outlet check valve is stuck closed
there is a restriction in the fuel return line
the fuel pressure regulator is stuck open
Most fuel pressure regulators increase fuel pressure as
the vacuum decreases
oil pressure increases
the vacuum increases
oil pressure decreases
A partially restricted catalytic converter might cause
a lean condition
low engine power
lower running temperature
higher engine compression
If the EGR valve is stuck slightly open,theengine idle will most likely be
high
unchanged
rough
smooth
A leaky exhaust system could cause
engine overheating
excessive emission
early fuel evaporation
low oil pressure
