Question

What causes a misfire on cylinder 7 on my 1999 Land Rover Discovery V8?

Answer 1

There are many things things what could cause it, but check spark plugs first

- Faulty spark plug 7
- Faulty ignition coil 7
- Ignition coil 7 harness is open or shorted
- Ignition coil 7 poor electrical connection
- Clogged or faulty fuel injector 7
- Injector 7 harness is open or shorted
- Injector 7 poor electrical connection
- Improper spark plug 7
- Insufficient cylinder 7 compression
- Incorrect fuel pressure
- Intake air leak