Aveo Sivi Ve Ariza Fabri̇ka Bi̇lgi̇leri̇

Rough, Unstable, Or I
Inspections
Definition : Engine runs unevenly at idle. If severe, the engine or vehicle may
Preliminary Inspection
Sensor/System Inspection
Fuel System Inspection
Ignition System Inspection
Engine Mechanical Inspection

Additional Inspection
Recommended Fluids and Lubricants

Usage Capacity
Engine Oil 3.75L (3.96 qt) : 1.2L D (B12D)
4.5L (4.75 qt) : 1.4L D (G14D)
Engine Coolant 5.2L (5.5 qt) : 1.2L D (B12D)

6.3L (6.6 qt) : 1.4L D (G14D)
Brake Fluid and Clutch Fluid 0.5L (0.5 qt)
Power Steering System 1.1L (1.2 qt)
Automatic Transaxle 5.87 ± 0.2L (6.2 ± 0.2 qt) : 1.4L D (G14D)
Manual Transaxle 2.1L (2.2 qt) : 1.2L D
1.8L (2.0 qt) : 1.4L D
Manual Transaxle Shift Linkage As required
Key Lock Cylinders As required
Automatic Transaxle Shift Linkage As required
Clutch Linkage Pivot Points As required
Floor Shift Linkage Points As required
Hood Latch Assembly As required
a. Pivots and Spring Anchor
b. Release Pawl
Hood and door hinges As required
Fuel door hinge
Rear compartment lid hinges
Weatherstrips As required
Rough, Unstable, Or Incorrect Idle And Stalling
Action
e, the engine or vehicle may shake. Engine idle speed may vary in RPM. Either condition may be severe enough to stall the eng
Refer to Important Preliminary Inspection Before Starting in Symptoms - Engine Controls.
Search for bulletins.
Inspect the vehicle for factory or aftermarket accessories that may contact the body and chassis. A grounding out co
Inspect the engine control module (ECM) grounds for being clean, tight, and in the proper locations.
Remove and inspect the air filter element for dirt or for being restricted. Replace as necessary.
Test the throttle actuator control (TAC) system.
Test the crankcase ventilation system
Monitor the knock sensor for excessive spark retard activity with a scan tool.
Inspect for correct fuel system pressure.
Inspect for a restricted fuel filter.
Inspect for a contaminated fuel condition.
Verify that each injector harness is connected to the correct injector/cylinder according to the firing order.
Inspect the fuel injectors.
Inspect the items that cause an engine to run rich or lean.
Inspect for the correct installation of the ignition coil seals. Incorrect installation may allow water to enter the spark p
Inspect the ignition voltage output at the ignition coil. If you suspect an ignition system condition exists, refer to Electronic Ign
Remove the spark plugs and inspect for the following conditions:
Correct heat range
Wet plugs
Cracks
Wear
Improper gap
Burned electrodes
Heavy deposits
If the apsrk plugs are gas, coolant, or oil fouled, determine the cause before replacing the spark plugs.
Inspect for a condition with the camshaft actuator system. A camshaft actuator that is stuck in the full advance or ret
Inspect the engine for the following conditions:
Excessive oil in combustion chamber or leaking valve seals
Camshaft timing
Excessive carbon buildup in the combustion chambers
Improper valve timing
Bent pushrods
Worn rocker arms
Low engine compression
Broken or weak valve springs
Worn camshaft lobes
Inspect the following components for incorrect basic engine parts:
Camshafts
Cylinder head
Pistons, connecting rods, or bearings
Inspect the vacuum hoses for splits and kinks.
Inspect the evaporative emission (EVAP) canister purge solenoid for the following:
A stuck open condition
Charcoal contamination due to a defective EVAP canister.
Inspect the following components of the exhaust system for possible restrictions:
The exhaust system for damaged or collapsed pipes
The exhaust manifold for a collapsed inner wall
The mufflers for heat distress or possible internal failure
Inspect the park neutral position (PNP) switch circuit.

Inspect for faulty engine mounts.
Inspect the intake manifold and the exhaust manifold passages for casting flash.
Electromagnetic interference (EMI) on the reference circuit can cause an engine miss condition.
A scan tool can usually detect EMI by monitoring the engine RPM. A sudden increase in RPM, with little change in a
f a problem exists, inspect routing of high voltage components, such as fuel injector wiring, near the sensor circuits.
and Lubricants
Fluid/Lubricant
(B12D) ACEA A3/B3 or A3/B4 or API SM
Down to -25°C and below : OW-X, X=30 or 40
Down to -25°C : 5W-X, X=30 or 40
Down to -20°C : 10W-X, X=30 or 40
Down to -15°C : 15W-X, X=30 or 40
(G14D) ACEA A3/B3 or A3/B4 or API SM
Down to -25°C and below : OW-X, X=30 or 40
Down to -25°C : 5W-X, X=30 or 40
Dex-cool / Long Life Coolant
DOT-3 or DOT-4
DEXRON®-IID
ESSO JWS 3309 or TOTAL-ISU FLUID III G
SAE75W85W : 1.2L D
SAE75W90 : 1.4L D
Multipurpose type grease meeting requirements NLGI No. 1 or 2
Silicone lubricant
Engine oil
Engine oil
Engine oil
a. Engine oil
b. Multipurpose type grease meeting requirements NLGI No. 1 or 2
Engine oil
Silicone grease
vere enough to stall the engine.
chassis. A grounding out condition may simulate a misfire or rough run concern.
r locations.
o the firing order.
w water to enter the spark plug area. Inspect for moisture and corrosion.
n exists, refer to Electronic Ignition (EI) System Diagnosis.
e spark plugs.
uck in the full advance or retard position may cause this symptom.
RPM, with little change in actual engine RPM change, indicates that EMI is present. I
g, near the sensor circuits.

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Rough, Unstable, Or I

Fuel System Inspection

Ignition System Inspection

Engine Mechanical Inspection

Recommended Fluids and Lubricants

Engine Coolant 5.2L (5.5 qt) : 1.2L D (B12D)

Inspect the park neutral position (PNP) switch circuit.

o the firing order.

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