- Clogged fuel filter: A dirty fuel filter can restrict fuel flow to the engine, causing it to lose power.
- Faulty fuel pump: A faulty fuel pump can't deliver enough fuel to the engine, leading to a loss of power.
- Clogged fuel injectors: Dirty fuel injectors can cause the engine to run lean, which can lead to a loss of power.
- Vacuum leaks: A vacuum leak can cause the engine to run lean and lose power.
Ignition System Issues
- Faulty spark plugs: Worn or damaged spark plugs can cause the engine to misfire and lose power.
- Faulty spark plug wires: Damaged or loose spark plug wires can prevent spark from reaching the spark plugs, causing the engine to lose power.
- Faulty ignition coil: A faulty ignition coil can't produce enough spark to ignite the fuel in the cylinders, leading to a loss of power.
Mechanical Issues
- Worn piston rings: Worn piston rings can cause the engine to lose compression, which can lead to a loss of power.
- Leaky head gasket: A leaky head gasket can cause the engine to lose compression, leading to a loss of power.
- Restricted exhaust system: A restricted exhaust system can prevent the engine from breathing properly, causing it to lose power.
Electrical Issues
- Faulty alternator: A faulty alternator can't generate enough electricity to power the engine's electrical components, which can lead to a loss of power.
- Faulty starter: A faulty starter can prevent the engine from starting, or can cause it to start and then stall.
- Faulty battery: A faulty battery can't provide enough power to the engine, leading to a loss of power.
Computer Issues
- Faulty engine control module (ECM): The ECM is responsible for managing the engine's fuel and ignition systems. A faulty ECM can cause the engine to run lean or rich, or can cause it to misfire, leading to a loss of power.
- Faulty transmission control module (TCM): The TCM is responsible for managing the transmission. A faulty TCM can cause the transmission to shift erratically or not shift at all, leading to a loss of power.
Other Issues
- Low tire pressure: Low tire pressure can increase rolling resistance and reduce fuel efficiency, leading to a loss of power.
- Dirty air filter: A dirty air filter can restrict airflow to the engine, causing it to lose power.
- Overheating: An overheated engine can lose power due to reduced efficiency.
