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Service bulletin 13737

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id620269
Published by NHTSA2001-07-23
Manufacturer's number13737
Manufacturer's date2001-03-01
NHTSA componentPOWER TRAIN

NHTSA's summary

INOPERATIVE OR INACCURATE SPEEDOMETER AS WELL AS 4X4 LIGHT INOPERATIVE AND / OR DIAGNOSTIC TROUBLE CODE P1635 AND / OR P1639 AFTER A POWERTRAIN CONTROL MODULE (PCM) HAS BEEN REPLACED. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline

Trouble codes named

P1635, P1639

Vehicles listed
FORD EXPEDITION1999, 2000
FORD F-1501999, 2000
FORD F-2501999, 2000
FORD MUSTANG1999, 2000
LINCOLN NAVIGATOR1999, 2000

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
200522008-01-23. Service bulletin. 1999-2008 F250-F550 SUPER DUTY 4X4 WITH ELECTRONIC SHIFT TRANSFER CASE NOT ENGAGING 4X4. *NJ
056182005-12-07. Service bulletin. REAR AXLE NOISE REPAIR. *TT
184662005-05-05. Service bulletin. AXLE WHINE HOWL. THIS INCLUDES 1997-05 FORD VEHICLES. *EH
042662005-04-29. Service bulletin. A DRIVELINE CLUNK OR BUMP WHEN STARTING FROM A STOP. *TT
0421072005-04-28. Service bulletin. GENERAL (PCM) POWER TRAIN CONTROL MODULE PROGRAMMING PROCEDURES. *TT
042272005-04-18. Service bulletin. DRIVE AWAY SHUDDER OR VIBRATION. *EH
042172005-04-15. Service bulletin. GENERAL POWER TRAIN CONTROL MODULE (PCM) PROGRAMMING PROCEDURES. *TT
183762005-04-14. Service bulletin. A COLD WEATHER REVERSE ENGAGEMENT STALL. *TT
041852005-04-08. Service bulletin. FRONT HUBS NOT ENGAGING, NOT STAYING ENGAGED AND/OR UNLOCKING. *TT
182502004-12-08. Service bulletin. INTERMITTENT CLUNK ON 3-2 DOWNSHIFT DURING COASTDOWN/TIP-IN. OASIS. TO INCLUDE 2005 F-150, E-SERIES AND EXPEDITION. *TT