Service bulletins for the 1991 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.
40 on file from NHTSA, as of 2026-10-19.
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Only bulletins with component: Manual transmission are shown. Show all
| BC9642961001 | 1997-04-24. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. PROCEDURE FOR VEHICLES EQUIPPED WITH AN AODE OR 4R70W TRANSMISSION HAS A CONCERN OF SHUDDER FROM THE TRANSMISSION TORQUE CONVERTER CLUTCH IN 3RD OR 4TH GEAR OR DURING 3-4 SHIFT. *TT |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.