BUICK, CADILLAC, CHEVROLET, GMC, PONTIAC, SATURN

PIP3333C

2014-10-07 · NHTSA 10135316

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 an intermittent engine misfire and a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0300, P0301, and/or P0304. Technician will need to follow published Service Information diagnostics first. If the Service Information diagnostics do not isolate a cause for this concern, inspect the inside of the fuel rail and/or fuel tank for fuel contamination. f fuel contamination is present, refer to the "Fuel System Cleaning" procedure in Service Information. Dealer will need to advise the customer to only use fuel from high quality high volume Top Tier fuel stations.

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.