Safari Van M V6-262 4.3L VIN W CPI (1992)
Apply "Campaign Identification Label" only on a clean, dry surface.
ADMINISTRATIVE PROCEDURE
Procedures covering this campaign are outlined in Section V of your dealership's "GMC Truck Warranty Claims Processing Manual" # P9119.
Owner Letter
Dear GMC Truck Owner:
General Motors has determined that certain l992-94 Safari Vans. S/T Jimmy Utility Vehicles and Sonoma Pickup Trucks equipped with 4.3L V6 (RPO
L35) engines used in Alaska and Canada may exhibit ice buildup in the Positive Crankcase Ventilation (PCV) system if operated below -22° F (-30° C).
This condition may cause engine oil leaks through the dipstick tube and/or rear main seal. Engine failure may result if the vehicle is driven with this
condition.
To correct this condition. dealers are to replace the Positive Crankcase Ventilation (PCV) valve with a higher flow calibrated valve.
Instructions for performing this service have been sent to your GMC Truck dealer, and parts are available. Please contact you GMC dealer to arrange a
service date as soon as possible. This procedure will take about 15 to 30 minutes to complete, but you should ask how much additional time your dealer
will need to schedule and process your vehicle.
Your GMC Truck dealer is best equipped to provide service to ensure your vehicle is corrected as promptly as possible. However, if you take your
vehicle to your dealer on the agreed service date and they do not service this condition on that date or within five days, we recommend you contact GMC
Truck Consumer Relations. Consumer Relations will assist you and your dealer in getting your vehicle corrected. The telephone number of the Consumer
Relations office is listed in your Warranty and Owner Assistance Information Manual.
After contacting your GMC Truck dealer and the GMC Truck Consumer Relations office. If you are still not satisfied that we have done our best to
remedy this condition without charge within a reasonable time, you may wish to write the Environmental Protection Division (EN-340F). United States
Environmental Protection Agency, 401 M Street, S.W., Washington. D.C. 20460. To ensure your full protection under the emission warranty made
applicable to your vehicle by Federal law, and your right to participate in future recalls. It is recommended that you have your vehicle serviced as soon as
possible. Failure to do so could legally be determined to be lack of proper maintenance of your vehicle. Also, your vehicle may fail a state or local
emission inspection test if the recall work is not accomplished.
Should your dealer find that your emission system has been intentionally disabled, you will be asked if you wish the system to be restored so that it will
function as designed. The cost of such restoration will be your responsibility.
The enclosed postage paid owner reply card identifies your vehicle. Presentation of this card to your dealer will assist in making the necessary correction
to your vehicle in the shortest possible time. If you have sold or traded your vehicle, please furnish us the complete name and address of the person you
sold or traded your vehicle to and return the card to us.
Also, enclosed is an information sticker for your vehicle's owner's manual. This sticker should be placed on the page in Section 6, "Service and
Appearance Care," that has the "Service Replacement Part and Filter Recommendations," to avoid improper PCV valve usage at any time in the future.
We are sorry to cause you this inconvenience: however, we have taken this action in the interest of your continued satisfaction with our product.
