Chevrolet Sonic Repair Manual: Spark Plug Replacement
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Callout |
Component Name |
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Preliminary Procedure
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1 |
Spark Plugs Caution: Refer to Fastener Caution.
25 Y (18 lb ft) Special Tools
EN-194-E Spark Plug Remover For equivalent regional tools, refer to Special Tools. |
Spark Plug Inspection
Spark Plug Usage
Ensure that the correct spark plug is installed. An
incorrect spark plug causes driveability conditions.
Ensure that the spark plug has the correct heat range.
...
Special Tools
Illustration
Tool Number/Description
CH 9127-E
SA 9127-E
Fuel Pressure/Flow Adapter
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Other materials:
Starting the Engine
The vehicle has a Computer-Controlled Cranking System. It assists in starting
the engine and protects components. If the ignition key is turned to START and then
released when the engine begins cranking, the engine will continue cranking for
a few seconds or until the engine starts. If the eng ...
Knock Sensor System Description
Circuit/System Description
The knock sensor system enables the engine control module (ECM) to control
the ignition timing for the best possible performance while protecting the engine
from potentially damaging levels of detonation. The ECM uses the knock sensor
system to test for ...
Throttle/Idle Learn
Description
The engine control module (ECM) learns the airflow through the throttle body
to ensure the correct idle. The learned airflow values are stored within the
ECM. These values are learned to adjust for production variation and will continuously
learn during the life of the ...
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