DAEWOO NUBIRA 2004 Service Repair Manual

DAEWOO NUBIRA 2004 Service Repair Manual NUBIRA 2004 DAEWOO DAEWOO https://www.carmanualsonline.info/img/54/56879/w960_56879-0.png DAEWOO NUBIRA 2004 Service Repair Manual
Trending: fuel filter location, main idle throttle actuator valve, wheel, oil dipstick, brake pads, engine e, snow chains

Page 821 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 575
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
5Replace the sensor in the affected circuit, if a Diag-
nostic Trouble Code (DTC) was stored for this circuit
(except for the

Page 822 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 576IENGINE CONTROLS
DAEWOO V–121 BL4
HARD START
Definition : The engine cranks OK, but does not start for
a long time. The engine eventually runs or may start and
immediately die.Important :

Page 823 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 577
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
101.  Check the fuel injector driver circuit.
2.  Disconnect all of the fuel injector harness con-
nectors at the fuel injecto

Page 824 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 578IENGINE CONTROLS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
231.  Check for the proper valve timing.
2.  Check the cylinder compression.
3.  Inspect the pushrods, the rocker arms, the
val

Page 825 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 579
DAEWOO V–121 BL4
SURGES OR CHUGGLES
Definition : Engine power varies under steady throttle or
cruise, making it feel as if the vehicle speeds up and slows
down with no ch

Page 826 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 580IENGINE CONTROLS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
121.  Inspect the engine control module (ECM)
grounds to make sure they are clean, tight, and
in their proper locations.
2.  In

Page 827 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 581
DAEWOO V–121 BL4
LACK OF POWER, SLUGGISHNESS, OR SPONGINESS
Definition : The engine delivers less than expected power. There is little or no increase in speed when the ac

Page 828 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 582IENGINE CONTROLS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
141.  Check the cylinder compression and valve tim-
ing.
2.  Inspect the camshaft for excessive wear.
Is the problem found?–G

Page 829 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual ENGINE CONTROLS  1F – 583
DAEWOO V–121 BL4
HESITATION, SAG, STUMBLE
Definition : Involves a momentary lack of response as the
accelerator is pushed down. This can occur at any vehicle
speed. It is

Page 830 of 2643

DAEWOO NUBIRA 2004  Service Repair Manual 1F – 584IENGINE CONTROLS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
11Replace any restricted or leaking fuel injectors.
Is the repair complete?–System OK–
12Check the fuel system pressure aft
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