Question about 2003 Chevrolet Silverado Ss
Your Silverado's ECM has detected an issue and has reduced the engine power. You going to have the the truck scanned for the DTC codes so you can address the issue that is causing the reduce power to activate. Auto Zone scan free of charge, good luck and keep me posted.
Posted on Feb 08, 2010
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Posted on Jan 02, 2017
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When the service engine soon light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.
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