LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Eagle >> 1995 >> Vision ESi >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 3.3L >> Test NTC-14A >> Checking Engine Vacuum
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Checking Engine Vacuum

NOTE: After each repair, perform TEST VER-2  .

Connect a vacuum gauge to engine. Start engine, and let it idle. Normal vacuum reading will vary depending on altitude. Observe vacuum gauge at idle. If vacuum gauge reading is not steady 13-22 in. Hg, go to TEST NTC-16A  . If vacuum gauge reading is steady and within specification, test is complete.