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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Engine Controls - Tests W/Codes - 5.9L Gasoline) >> Self-Diagnostic Tests >> Test NTC-1A - No Trouble Code Test Menu >> No Trouble Code Quick Symptom Test

No Trouble Code Quick Symptom Test

WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Symptom checks cannot be used properly unless driveability problem characteristic actually happens while vehicle is being tested. To reduce diagnostic time, ensure that TEST TC-1A is reviewed before attempting to diagnose a symptom.

Select symptom that most accurately describes vehicle's driveability problem and then perform test pertaining to this symptom. Perform each test in sequence until problem is found. See NO TROUBLE CODE QUICK SYMPTOM TEST MENU table.

NO TROUBLE CODE QUICK SYMPTOM TEST MENU

Application Test
Hard Start NTC-2A, 3A-8A, 11A, 14A, 15A
Start & Stall NTC-2A, 3A-6A, 8A, 11A, 15A
Hesitation/Sag/Stumble (1)
Surge NTC-2A, 3A-8A, 11A, 12A, 15A
Lack Of Power/Sluggish NTC-2A, 3A-8A, 11A, 13A, 15A
Spark Knock/Detonation NTC-2A, 3A-9A, 11A, 12A, 15A
Cuts Out/Misses NTC-2A, 3A, 7A, 9A, 11A, 13A, 15A
Backfire/Pop-Back NTC-2A, 3A, 6A, 7A, 11A, 13A, 15A
Runs Rough/Unstable/Erratic Idle (1)
Poor Fuel Economy (1)
(1) Perform tests NTC-2A through NTC-15A in sequence. See NO TROUBLE CODE TEST MENU  table.