LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 1997 >> Cherokee Country, 4WD, Part Time >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4.0L >> No Trouble Code Tests >> Test NTC-14A - Checking Engine Vacuum

Test NTC-14A - Checking Engine Vacuum

NOTE: Normal vacuum reading will vary depending on altitude.

Connect a vacuum gauge to engine vacuum source. Start engine, and let it idle. Observe vacuum gauge at idle. If vacuum gauge reading is not steady 13-22 in. Hg, perform TEST NTC-22A. If vacuum gauge reading is steady and within specification, engine vacuum is normal. Test passed.