What color is the 5/16-inch Ford fuel line disconnect tool?

The 5/16-inch tool, part number T90T-9550-B, is gray; the 3/8-inch tool, T90T-9550-C, is blue.

What types of spring-lock coupling tools are shown?

Five styles are illustrated: Collar, Clamshell, Scissor, Low-Profile, and 4-Way.

How does the disconnect procedure work on these fittings?

The diagrams show the fitting in its normal connected state, then a step-by-step sequence (Steps 1-3 and Steps A-D) where the disconnect tool is pushed into the fitting to release the internal spring bail, allowing the two halves to be pulled apart.

What holds the quick-disconnect fitting together?

A spring bail (garter spring) inside the fitting, shown in the 'Spring Bail from inside fitting' illustration, retains the coupling until released by the tool.

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Ford Fuel Line Quick-Disconnect & Spring-Lock Coupling Tools Diagram (T90T-9550)

Spring-lock coupling tool and step-by-step connect/disconnect procedure diagrams

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Service procedure showing spring-lock coupling tools and numbered steps for connecting and disconnecting fuel line fittings.

AI caption February 2011 · Photo 501 of 1799

This document is a service reference diagram covering Ford fuel line quick-disconnect (spring-lock) fittings and the special tools used to separate them. The top-left panel illustrates a fuel line disconnect tool in use on a quick-disconnect fitting and lists the tool part numbers: T90T-9550-B for 5/16-inch fittings (gray), T90T-9550-C for 3/8-inch fittings (blue), and T90T-9550-S for the set of both tools. A second panel shows the spring bail (garter spring) as viewed from inside the fitting. The top-right panel, titled 'Spring-Lock Coupling Tools,' illustrates five styles of disconnect tools: Collar, Clamshell, Scissor, Low-Profile, and 4-Way. The lower two rows contain cross-section diagrams of the coupling. The first sequence shows the 'Normal' connected state followed by Steps 1-3, illustrating how the tool is inserted into the fitting and pushed to expand the spring so the male and female halves can be pulled apart. The second sequence, Steps A-D, shows an alternate disconnection method, ending with views of the separated fitting halves and the internal spring/clip. A reader can learn which Ford tool part numbers fit which line sizes and visually follow the disconnection procedure for these fuel filter/fuel line couplings.

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Frequently asked questions

What tool do I need to disconnect Ford fuel line quick-disconnect fittings?: The document lists a fuel line disconnect tool: T90T-9550-B for 5/16-inch fittings (gray), T90T-9550-C for 3/8-inch fittings (blue), or T90T-9550-S, which is the set of both tools.
What color is the 5/16-inch Ford fuel line disconnect tool?: The 5/16-inch tool, part number T90T-9550-B, is gray; the 3/8-inch tool, T90T-9550-C, is blue.
What types of spring-lock coupling tools are shown?: Five styles are illustrated: Collar, Clamshell, Scissor, Low-Profile, and 4-Way.
How does the disconnect procedure work on these fittings?: The diagrams show the fitting in its normal connected state, then a step-by-step sequence (Steps 1-3 and Steps A-D) where the disconnect tool is pushed into the fitting to release the internal spring bail, allowing the two halves to be pulled apart.
What holds the quick-disconnect fitting together?: A spring bail (garter spring) inside the fitting, shown in the 'Spring Bail from inside fitting' illustration, retains the coupling until released by the tool.