What does this illustration show?

A hand with a finger being placed over the open end of a threaded valve or fitting, with dotted lines showing the finger's motion and an arrow indicating direction — depicting a finger-over-the-valve suction test.

Does this document contain any test specifications or values?

No. The scan is an illustration only, with no text, torque values, vacuum specs, or part numbers visible.

Does the document state which vehicle or year it applies to?

No. There is no year, make, model, or engine information visible anywhere on the page.

How is the test performed according to the picture?

The picture shows placing a fingertip over the open end of the valve/fitting, implying you check for suction (vacuum) at the opening.

Home/ Registry/ Ford/ Bronco/ 1992-1996/ “The Bronco”/ Photo supermotors.net/registry/media/254884

1992 Ford Bronco PCV Valve Vacuum Test Illustration - Finger Suction Check

Line drawing of a hand installing or checking a threaded fitting or sensor

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Service manual line illustration showing a hand hand-tightening a threaded fitting or sensor with a directional arrow.

AI caption October 2005 · Photo 141 of 277

This document is a text-free line-art illustration, uploaded with the filename 'PVC Testing.gif' to a 1992 Ford Bronco gallery. It depicts a hand with an extended finger being placed over the open end of a threaded, hex-bodied valve or fitting mounted through a panel or hose — consistent with the common test of feeling for vacuum/suction at a PCV valve while the engine runs. Dotted lines show the finger's motion toward the valve opening, and a large arrow at the upper right suggests airflow direction or the pull of vacuum. Because the illustration contains no captions, labels, part numbers, torque values, or year/model identification, a reader can learn only the physical procedure being demonstrated: cover the valve opening with a fingertip to check for suction. The document itself provides no applicability statement, so it neither confirms nor contradicts the claimed 1992 Ford Bronco fitment. Anyone searching for the accompanying test specifications (expected vacuum readings, engine speed, or pass/fail criteria) would need the surrounding manual pages, as this scan is purely a procedural graphic likely excerpted from a larger service manual section on crankcase ventilation (PCV) system testing.

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Frequently asked questions

What does this illustration show?: A hand with a finger being placed over the open end of a threaded valve or fitting, with dotted lines showing the finger's motion and an arrow indicating direction — depicting a finger-over-the-valve suction test.
Does this document contain any test specifications or values?: No. The scan is an illustration only, with no text, torque values, vacuum specs, or part numbers visible.
Does the document state which vehicle or year it applies to?: No. There is no year, make, model, or engine information visible anywhere on the page.
How is the test performed according to the picture?: The picture shows placing a fingertip over the open end of the valve/fitting, implying you check for suction (vacuum) at the opening.