Troubleshooting assistant
Pick a problem area, choose the symptom, then follow the remedy links or step-by-step TSRM procedure.
Engine Mechanical
Rough idle, stalls or misses
Rough idle, stalling or misfire symptoms.
Step-by-step guide available. Use this when the remedy table sends you to a troubleshooting procedure.
Start guide
Possible causes and remedies
Possible cause
Vacuum leaks• PCV hoses
• EGR valve
• Intake manifold
• Air intake chamber
• Throttle body
• ISC valve
Remedy
Repair as necessary
Possible cause
Pulling in air between air flow meter and throttle bodyRemedy
Repair as necessary
Possible cause
Ignition problems• Ignition coil
• Igniter
• 7M-GE distributor
• 7M-GTE cam position sensor
Remedy
Perform spark test
Possible cause
EFI system problemsRemedy
Repair as necessary