Tools by symptom
Not sure what to buy? Start with the symptom. These pages recommend tools that help you confirm the cause with evidence.
Misfire
Recommended tools to diagnose misfire faster.
Rough idle
Recommended tools to diagnose rough idle faster.
No start
Recommended tools to diagnose no start faster.
Overheating
Recommended tools to diagnose overheating faster.
Underboost
Recommended tools to diagnose underboost faster.
White smoke
Recommended tools to diagnose white smoke faster.
Battery drain
Recommended tools to diagnose battery drain faster.
Brake judder
Recommended tools to diagnose brake judder faster.