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Service bulletins for the 1993 Mercury Grand Marquis

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.

78 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Torque converter are shown. Show all

Bulletins, newest first
9831151999-09-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. CONCERNS WITH VEHICLES EXHIBITING A TORQUE CONVERTER SHUDDER. *TT
98871998-07-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. EXPERIENCING A TORQUE CONVERTER CLUTCH SHUDDER OR VIBRATION. *YC
9626121997-06-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. TRANSAXLE - TORQUE CONVERTER REPLACEMENT GUIDELINES AND TORQUE CONVERTER/TRANSAXLE COOLING SYSTEM CLEANING PROCEDURES - SERVICE TIP. *TW
9625171997-06-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. TRANSMISSION - AODE - 4R70W - SHUDDER OR VIBRATION UNDER LIGHT TO MODERATE ACCELERATION ABOVE 56 KM/H (35 MPH) WHILE IN 3RD OR 4TH GEAR. *TW
962491997-06-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. TORQUE CONVERTER - LEAK TEST PROCEDURE - SERVICE TIP. *TW
BC08109610111997-04-24. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. VEHICLES EQUIPPED W/ AN AODE OR 4R70W TRANS HAS A CONCERN OF SHUDDER FROM THE TRANSMISSION TORQUE CONVERTER CLUTCH IN 3RD OR 4TH GEAR OR DURING 3-4 SHIFT. *TT
BC30329504011995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC; ENGINE AND ENGINE COOLING:ENGINE; POWER TRAIN:AUTOMATIC TRANSMISSION; EXTERIOR LIGHTING:HEADLIGHTS; ELECTRICAL SYSTEM:IGNITION:MODULE; STRUCTURE:BODY:DOOR. UNKNOWN
BC28509504011995-11-01. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. TORQUE CONVERTER CLUTCH SHUDDER/VIBRATION. *TW

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.