P0304 error spark plug servicing
I have a 2005 MG ZT and had an engine error message P0304 which is misfire on cylinder 4. I think it's a faulty spark plug but my garage would not do a spark plug replacement in a full service as they said it's too awkward to get to the plugs on this MG ZT.
Is that the case with this vehicle, should I try another garage and would it be expensive? Any advice would be helpful. Thanks! |
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There's an access panel on the bulkhead:
https://the75andztclub.co.uk/forum/s...d.php?t=120114 https://the75andztclub.co.uk/forum/s...d.php?t=166829 Awkward, but certainly shouldn't be beyond a professional. Your fault could also be caused by a failing coil. |
Thanks both!
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Yes I think that was it. Still a bit penny-pinching IMO.
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Having changed the sparking plugs on the right-hand bank myself I'm with the garage and Tim on this one. You either have to remove the manifold chamber which involves about fifteen disconnections or take off the windscreen wipers and remove the scuttle cover to reach the plugs through a removable panel after unscrewing the plug-top ignition coils in a restricted place! It's quite simply a painful job. Fortunately the original triple electrode plugs last well beyond the service schedule period. Simon |
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Thanks for that info Simon. Makes me think another garage was lying when they said they replaced the spark plugs, it was no problem, and they threw away the old plugs, so I never saw them. |
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