evabrown88
Ulysee engine running rough
Summary of the thread
The 2009 Fiat Ulysee was experiencing rough running, stalling at idle, and jerking during acceleration, with the check engine light on. These issues were suspected to be caused by a defective cable or plug connection, but further discussion suggested a faulty ignition coil as a more likely cause. After diagnosis at a garage, it was confirmed that replacing the ignition coil resolved all the problems.
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4 comment(s)
evabrown88 (community.author)
That's a very vivid description, thank you. I haven't checked the error codes yet. But considering all the symptoms, is it still likely to be 'just' a defective plug connection? Or is this something more serious? Could it be as simple as replacing the ignition coil?
hermannschmid1
While a simple fix is always possible, those symptoms together usually point toward ignition coil issues. It could potentially be just the connection, but don't get your hopes too high. Considering everything you've said, it might be best to get it properly diagnosed at a workshop.
evabrown88 (community.author)
It was indeed the ignition coil. The garage confirmed the diagnosis, and with a new coil and a bit of fiddling, all the problems are gone. The total repair cost was 95€. Replacing the ignition coil did the trick!
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FIAT
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ULYSEE
hermannschmid1
Sounds like it could be coil failure. Has the check engine light given you any specific error codes? If it's misfiring, it very well could be a bad plug or a faulty ignition coil. How old are your spark plugs, by the way? Think of your engine as a series of tiny explosions, and the coil is the detonator. If the detonator is bad, no boom.