K 1500 Truck 4WD V8-393 6.5L DSL (1994)
determine the owner's name and address from the dealership sales records. Please provide this information directly on the second copy of the listing next
to the applicable VIN so that our records may be updated and the appropriate notification mailed to the owner. This second copy should then be
submitted to the address listed below in the previously supplied yellow campaign envelopes.
General Motors Corporation
101 Union Street
Plymouth, Michigan 48170
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicles by GMC Truck Division (see copy of owner letter included with this bulletin). In addition. the
owners will also be provided a pamphlet entitled "How To Get The Most From Your EFI Diesel Truck". A listing of owner names and addresses has
been furnished to the involved dealers to enable dealers to follow up with owners involved in this campaign. This listing may contain owner names and
addresses obtained from State Motor Vehicle Registration records. The use of such motor vehicle registration data for any other purpose is a violation of
law in several states. Accordingly. you are urged to limit the use of this listing to this campaign
Service Procedure
The following checks must be performed to qualify the engine support systems. A "Diagnostic Check Sheet" has been provided to assist in this process,
and must be attached to the repair order.
1.
Check PROM ID using Tech 1. See "Parts Information" of this bulletin for ordering replacement PROM. If new PROM is currently in truck, do
not replace.
2.
Check for diagnostic trouble codes (DTC's), both history and current. Use the 1994 Diesel Service Manual Supplement for diagnosis and
correction. Clear all current and history DTCs before proceeding.
