Fuel Delivery - Fuel, Air & Emission Symptoms
Common symptoms and diagnostic guides.
Car feels like it’s slow to react to gas
Delayed throttle response and slow acceleration can come from air, fuel, ignition, or transmission issues. This guide maps common causes, likelihoods, and diagnostic steps for this performance issue.
Car smells strange and feels shaky at idle
A strange smell combined with shaking at idle often indicates issues such as fuel delivery problems, ignition faults, vacuum leaks, or engine mount wear. Proper diagnosis can pinpoint the root cause for safe operation.