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Service bulletins for the 2018 Ford F-550

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.

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

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Only bulletins with topic: maintenance are shown. Show all

Bulletins, newest first
SSM 512512023-01-05. Service bulletin. ENGINE AND ENGINE COOLING. Some 2011-2022 F-Super Duty vehicles equipped with a 6.7L diesel engine may exhibit a ticking noise at idle after an engine oil change. It is often referred to as Typewriter Noise because of its similarity to the sound of a mechanical typewriter. When engine temperatures reach 150 °F (65 °C) or higher, (from engine idle up to approximately 1700 RPM's), this noise can typically be heard at the front wheel well and is often isolated to the transmission bell housing or oil pan area. Typewriter Noise is not detrimental to engine function or durability and has no short or long term effects on the engine. Do not attempt repairs to eliminate this noise. This noise is characteristic of the 6.7L diesel engine and will typically cease or diminish significantly within the oil change maintenance interval.
SSM 480442019-07-08. Service bulletin. ENGINE AND ENGINE COOLING. Some 2011-2019 F-Super Duty vehicles equipped with a 6.7L engine may come in for scheduled maintenance on the engine mounted fuel filter. When reconnecting a fuel line quick connect fitting back onto the engine mounted fuel filter housing, push the connector all the way onto the fuel filter connection port. For some vehicles, you may need to depress a retainer clip to lock the quick connect port into place. Once the fitting is latched fully onto the connection port, pull straight backward on the fuel line to verify it is fully latched onto the connection port. Do not bend the fuel line connection when pulling to verify it is connected. Refer to Workshop Manual sections 310-00 for details on quick connect fittings.

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