Diesel Data: Automotive Repair
Home >> Buick >> 1985 >> Skyhawk L4-112 1.8L VIN 0 TBI >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> - Diagnosis By Symptom >> Hesitation, Sag, Stumble

Hesitation, Sag, Stumble


1. Improper fuel pressure.
2. Contamination of fuel.
3. Improper ignition timing.
4. Improper alternator output voltage.
5. Improper EGR valve operation.



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