CHEVROLET, GMC

14481

2014-10-16 · NHTSA 10090461

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

"14481 - SERVICE UPDATE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO INSPECT AND VERIFY THE INSTALLATION OF THE SPARK PLUG WIRES ON CERTAIN VEHICLES EQUIPPED WITH A GEN V GAS 5.3/6.2L V-8 OR 4.3L V-6 ENGINE (RPO L83/L86/LT1/LV3). THESE VEHICLES MAY HAVE LOOSE SPARK PLUG WIRES THAT ARE NOT SECURED AT THE SPARK PLUG OR COIL ATTACHMENT. LOOSE SPARK PLUG WIRES CAN CAUSE A MISFIRE CONDITION RESULTING IN P0300 DTC BEING SET WITH MIL (“SERVICE ENGINE SOON” LIGHT). CONTINUED OPERATION WITH THIS CONDITION COULD RESULT IN DAMAGE TO THE CATALYTIC CONVERTER."

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.