CHEVROLET, GMC

PIP3394F

2013-04-24 · NHTSA 10113006

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

This Preliminary Information communication provides information to the technician about vehicles that have Misfire, rough running, surge, chuggle, and possible Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P1223, P1226, P1229, P1232, P1235, P1238, P1241 or P1244. Technician should check the wiring between the Engine Control Module and the Fuel Injection Control module. Also inspect the C107 on Silverado and Sierra or C118 on Kodiak and Topkick connector for wire chafes. Technician should repair any wiring issues that are found.

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.