The Throttle Position Sensor Needs To Be Replaced On Certain D11N And 776C Tractors And 777C, 785B, 789B And 793B Trucks Caterpillar

NOTE: This Program must be administered as soon as possible. When reporting the repair, use "PI1267" as the Part Number, "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description Code. Exception: If the repair is done after failure, use "PI1267" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

NOTE: This Revised Service Letter replaces the February 23, 1995 Service Letter. Changes have been made to the Affected Product.

Problem

The existing 3E5400 Control Group, which senses throttle position, may wear resulting in the engine not fully returning to low idle when the throttle pedal is released on certain DllN and 776C Tractors, and 777C, 785B, 789B and 793B Trucks.

Affected Product
Model & Identification Number

D11N (4HK361-440)

776C (2TK76-78)

777C (4XJ077-408)

785B (6HK101-145, 6HK151-165, 6HK171-182, 6HK188-194, 6HK220-275, 6HK196, 6HK198, 6HK200, 6HK202, 6HK204-210, 6HK212, 6HK214, 6HK216, 6HK218)

789B (7EK111-240)

793B (1HL12-120)

NOTE: Any of the following models that may have been converted from mechanical unit injectors (MUI) to electronic unit injectors (EUI) before April of 1994 are also covered by this Program:

D11N (74Z), 776B (4YC), 777B (4YC), 785 (8GB), 789 (9ZC), and 793 (3SJ).

Parts Needed

Dealers will need to order parts for this Program.

1 - 1108190 Control Group

Action Required

Parts Stock

Remove all 3E5400 Control Groups from Parts Stock.

Affected Product

Remove the existing 3E5400 Control Group and install a new 1108190 Control Group.

Owner Notification

U.S. and Canadian owners will receive the attached Owner Notification.

Service Claim Allowances

Parts Stock

Submit one claim for all 3E5400 Control Groups removed from Parts Stock.

NOTE: US and Canadian Dealers Only - When submitting a Parts Stock claim use 99Z00001 in the Product Identification Number Field.

Affected Product

NOTE: This is a 1-hour job.

NOTE: U.S. and Canadian Dealers Only - Eligible dealers may enter a Type 2 SIMS Report.

Parts Disposition

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

NOTE: MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Attach.

(1-Owner Notification)

Copy Of Owner Notification For U.S. And Canadian Owners