- Faulty fuel pump
- Clogged fuel filter
- Faulty fuel injectors
Ignition issues
- Faulty starter
- Faulty ignition coil
- Faulty spark plugs
- Faulty distributor
Electrical issues
- Weak or dead battery
- Loose or corroded battery terminals
- Faulty alternator
- Faulty voltage regulator
Sensor issues
- Faulty oxygen sensor
- Faulty crankshaft position sensor
- Faulty camshaft position sensor
- Faulty mass air flow sensor
Computer issues
- Faulty engine control unit (ECU)
- Faulty body control module (BCM)
Mechanical issues
- Faulty timing belt or chain
- Worn piston rings
- Faulty head gasket
- Faulty valve train
