Troubleshooting assistant
Pick a problem area, choose the symptom, then follow the remedy links or step-by-step TSRM procedure.
Engine Mechanical
Engine hesitates / poor acceleration
Hesitation or poor acceleration.
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
Emission control system problem (cold engine)• EGR system always on
Remedy
Check EGR system
Possible cause
EFI system problemsRemedy
Repair as necessary