2500 4x4 Pickup L6-359 5.9L DSL Turbo (1995)
Fuel Tank Unit: Description and Operation
An auxiliary (capped) fuel supply fitting is located on the top of the fuel pump module. This fitting will be available only on the following models:
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diesel powered models
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models with the Heavy Duty 5.9 liter engine
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models with the 8.0 liter engine
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all chassis-cab models
This fitting supplies a non-pressurized auxiliary fuel source.
