Ford Pick-Ups/Bronco 1976-1986 Repair Guide

Carbon Canister


See Figures 1, 2 and 3

The carbon filled canister acts as a storage system for the fuel vapors vented from the tank, and where equipped, the carburetor. The outlet of the canister is connected to the air cleaner so that the stored vapors can be drawn into the engine and burned during combustion. Inspect the canister assembly for cracks or damage periodically, replacing unit if defects are found. At least every 24,000 miles, inspect the evaporative emission hoses for cracks or deterioration, and replace as required.

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Fig. Fig. 1: Carbon canister mounting

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Fig. Fig. 2: Canister hose connections-Inline 6 cylinder engine

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Fig. Fig. 3: Canister venting system-Inline 6 cylinder engine


  1. Disconnect the negative battery cable.
  3. Label and carefully disconnect the vapor hoses from the carbon canister.
  5. Remove the canister attaching screws. Lift the canister from the engine compartment, noting its orientation.
  7. Installation is the reverse of the removal procedure.