Cuts Out/Misses

DEFINITION
Pulsation or jerking that follows engine speed, usually more pronounced as engine load increases. The exhaust has a steady spitting sound at idle or low speed.

POWERTRAIN SYSTEM
Perform Powertrain System Check, if not already completed. Chart 1 Powertrain System Check

FUEL SYSTEM
Perform Chart 6C-1 Fuel System Check looking in particular for:

^ Fuel Injectors
- Not Operating
- Low Flow Rate

Chart 6C-1 Fuel System Check

IGNITION SYSTEM
Perform Chart 1 Ignition System Check, looking in particular for:

^ High Resistance, Open, Shorted, or Arcing Spark Plug Wires, crossfire between spark plug wires
^ Contaminated or Damaged Spark Plugs
^ Faulty Coil Pack or Ignition Control (IC) Module

Chart 1 Ignition System Check

MECHANICAL CAUSES
Check for the following mechanical causes:
- Valves Sticking in Guides
- Broken/Weak Valve Springs
- Collapsed Lifter
- Erratic Vehicle Speed Sensor (VSS) Readings
- Erratic Engine RPM Readings

PARK/NEUTRAL INPUT
Check Park/Neutral input using Diagnostic Trouble Code P091 Transaxle Range Switch Problem. P091