How do I relieve serpentine belt tension on the Ford 7.5L engine?

Per the decal, lift counterclockwise using the idler pulley bolt to relieve tension. The diagram shows using a wrench on the tensioner pulley bolt.

What engine does this belt routing diagram apply to?

It is labeled '7.5L Drive Belt Installation' (Moteur 7,5 L), i.e., the Ford 7.5 liter engine.

What is the Ford part number on this belt routing decal?

The decal carries the part number E8TA-8B656-CA, printed vertically on its right side.

Does the diagram account for trucks without air conditioning?

Yes — one pulley is labeled 'A/C OR IDLER,' indicating either an A/C compressor or an idler pulley occupies that position.

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Ford 7.5L 460 Serpentine Belt Routing Diagram Decal - E8TA-8B656-CA

Ford 7.5L drive belt installation routing label showing pulleys and belt path

Underhood 7.5L drive belt routing label showing the serpentine belt path over alternator, water pump, A/C and crankshaft pulleys.

AI caption June 2011 · Photo 0 of 5000

This document is a photograph of a factory Ford underhood decal (part number E8TA-8B656-CA) showing the serpentine drive belt routing for the 7.5L (460 cubic inch) V8 engine. The bilingual English/French label is titled '7.5L Drive Belt Installation / Parcours de la courroie – Moteur 7,5 L'. A schematic diagram shows the belt path around seven pulleys: alternator (ALT.), air pump, water pump, crankshaft, A/C compressor or idler pulley, automatic tensioner, and power steering pump (P/S). An illustrated hand with a wrench demonstrates the belt tension relief procedure, with red instructional text reading 'LIFT COUNTERCLOCKWISE USING IDLER PULLEY BOLT TO RELIEVE TENSION,' accompanied by the French equivalent. A red arrow indicates the direction to rotate the tensioner. The decal appears to be affixed to a black plastic panel (likely a fan shroud or engine cover). This document is useful for anyone reinstalling or replacing the serpentine belt on a Ford 7.5L/460 engine, showing both the correct belt routing pattern and the proper method for releasing tensioner pressure. The 'E8TA' prefix on the part number is visible on the right edge of the label.

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Frequently asked questions

How do I relieve serpentine belt tension on the Ford 7.5L engine?: Per the decal, lift counterclockwise using the idler pulley bolt to relieve tension. The diagram shows using a wrench on the tensioner pulley bolt.
What pulleys does the 7.5L drive belt route around?: The diagram shows the alternator, air pump, water pump, crankshaft, A/C compressor or idler pulley, tensioner, and power steering pump.
What engine does this belt routing diagram apply to?: It is labeled '7.5L Drive Belt Installation' (Moteur 7,5 L), i.e., the Ford 7.5 liter engine.
What is the Ford part number on this belt routing decal?: The decal carries the part number E8TA-8B656-CA, printed vertically on its right side.
Does the diagram account for trucks without air conditioning?: Yes — one pulley is labeled 'A/C OR IDLER,' indicating either an A/C compressor or an idler pulley occupies that position.