Car · Problems
Car keeps stalling
An engine that cuts out at idle or when slowing lacks air, fuel, or a sensor signal. Note whether it stalls cold, hot or when braking: that is the main clue.
UrgencyModerate
Can I drive?Yes, carefully
Likely causesCrankshaft sensor
Likely causes
- Crankshaft sensor25%
The engine cuts out when hot and restarts once cooled down: the classic signature.
- Clogged EGR valve20%
- Fuel pump20%
- Intake air leak15%
A hiss at idle with an unstable idle often means a split hose or intake gasket.
- Dirty mass air flow sensor10%
- Clogged fuel filter10%
What you can check yourself
- If it stalls hot and restarts after cooling, the crankshaft sensor is the prime suspect.
Fault codes often linked
P0016 Crankshaft and camshaft position correlation (bank 1)P0335 Crankshaft position sensor A circuitP0336 Crankshaft position sensor A range or performanceP0340 Camshaft position sensor A circuitP0299 Turbocharger underboostP0400 Exhaust gas recirculation flowP0401 EGR flow insufficientP0402 EGR flow excessive
Frequently asked questions
Car keeps stalling: what causes it?
Likely causes: crankshaft sensor (25%), clogged egr valve (20%), fuel pump (20%).
Can I drive?
Yes, carefully. Urgency: moderate.
Indicative estimate. MecaScan cannot see your vehicle: always have a diagnosis confirmed by a professional, and never work on brakes, steering or airbags without the skills.