Missfiring 997 C2S

[Danielandsabrina]

Hi

I have a 997 and before Christmas the water pump failed, basically exploded. I had it replaced by a friend who's a very knowledgeable mechanic (not Porsche specialist), we went for a euro parts replacement to save cost. All went fine, however after a week or two I started one morning and the car seemed like it was in limp mode and the engine light came on and wouldn't go anywhere, a few days later the same mechanic looked at it and started it up and it was driving ok, however the engine light still remainednon. He did say that it felt and sounded like it was misfiring. The car has been garaged, and now Christmas is out the way I need to get it sorted. I will take it to porshce but I am worried that they will try and charge me for all sorts of parts and problems (from past experience).

If anyone has had a similar experience like this or any ideas to the fault I would love to here them before it goes in for diagnostics.

It is also due a 60k service.

Thanks

Dan

[michelin]

I had a misfire on mine after a wash and figured that a coil pack had failed. I replaced all 6 and now the car is fine.

Coil packs are a common failure on our cars

:rolleyes:

[paul-michele]

Does sound like a coil pack. Similar thing happened to me - cost about £300 at an indy. Diagnostic was pretty instant.

Note that replacing one pack was pretty much the same price as 6 (although obvious 6 parts @£30 is obviously more) but the labour cost is the same!!