Engine misfire diagnostics
Can a misfire happen without a warning light?
Yes. An intermittent or developing fault may not always display a warning when the car is checked.

Engine misfire diagnostics — planning the work
For engine misfire diagnostics, the vehicle specification and condition determine suitable checks and parts. Some work needs workshop equipment, so describe the available space and the fault before confirming a mobile visit.
More questions
about this service.
Is a misfire diagnosis just an ignition check?
Depending on the engine and symptoms, fuel, air supply and mechanical condition can also need investigation.
What should be covered at handover?
Check agreed repairs, operation and any further mechanical findings.
Engine misfire diagnostics by area
Select a place to view this service for that location. Please provide the postcode when you enquire.