Misfiring cayman S
Discussion
Afternoon all
My 06 Cayman S is currently in the garage for an oil service. It also had an immissions light on ('visit a garage') that I asked them to look at.
Having run the diagnostics, they've told me that it's mifiring on 4 cyclinders. So they've quoted me £540 inc labour to replace all 6 ignition coils and plugs.
It had a full engine rebuild 2,000 miles ago (same indie garage). Since then it's got through approx 3.5l of oil. I had fealt a misfire and it did seem to be getting worse.
Given all the work that was done previously I'm a little paranoid. I just wondered if it could be the sign of something more sinister? Possibly even a problem with the cyclinder head?
Also, what are the risks of driving it? Is it a definite no?
Any help would be appreciated. Cheers.
My 06 Cayman S is currently in the garage for an oil service. It also had an immissions light on ('visit a garage') that I asked them to look at.
Having run the diagnostics, they've told me that it's mifiring on 4 cyclinders. So they've quoted me £540 inc labour to replace all 6 ignition coils and plugs.
It had a full engine rebuild 2,000 miles ago (same indie garage). Since then it's got through approx 3.5l of oil. I had fealt a misfire and it did seem to be getting worse.
Given all the work that was done previously I'm a little paranoid. I just wondered if it could be the sign of something more sinister? Possibly even a problem with the cyclinder head?
Also, what are the risks of driving it? Is it a definite no?
Any help would be appreciated. Cheers.
Not a regualr tinkerer but do most of the work myself and replacing the plugs only (coil packs need to come off when doing so of course) took me 1.75 hrs. But i would be more concerned with that oil consumption rate. I don't think i've ever come close to 3.5l in the 22k miles from new. Not sure the two can be linked but i agree that there is certainly a need for a second opinion in this case.
I paid £278 to have 4 of the 6 coil packs changed on my Cayman when it was misfiring, and that price included another minor job too (brake light switch). That was with JZ Machtech. You mention having the plugs changed as well; Porsche quoted £150 (including VAT) to do that as part of the car's second service but I would expect an indy to do it for a fair bit less, so I think you are possibly being quoted slightly high. No idea on the current going rate for these jobs though, or the parts prices so best to call around some other garages to get a better idea of costs.
Oil usage does sound excessive. Isn't 1 litre every 1000 miles considered the acceptable usage limit? Personally though, mine hasn't used anywhere near that; it's very rare that I need to top it up.
Are you willing to reveal the name of the specialist, or if different, who did the rebuild? You might get some experiences from others on here to say whether they are generally good/reasonably priced.
Oil usage does sound excessive. Isn't 1 litre every 1000 miles considered the acceptable usage limit? Personally though, mine hasn't used anywhere near that; it's very rare that I need to top it up.
Are you willing to reveal the name of the specialist, or if different, who did the rebuild? You might get some experiences from others on here to say whether they are generally good/reasonably priced.
Edited by ChipsAndCheese on Friday 6th January 16:43
If the indy rebuilt the engine, THEY not you should be picking up the tab for this sort of thing, assuming it was months not years ago.
if they rebulit the engine then how come it's misfiring on four cyllinders?? most indys try to make out they're you're best mate and not like the OPC - don't fall for that old flannel: they are garages and just like any other business don't want to accept liability for their negilgence. they should sort this for you free of charge
did you say you paid them 8.9k for a rebuild? they should be ashamed that it's misfiring let alone having the cheek to try to charge you to fix it
Misfiring is generic description for lots of problems, e.g. defective coil packs, some kind of air flow switch or faulty plugs. i had a similar problem recently. took it ot one reputable indy who couldn't find what the problem was for luv nor money. took it to another well known indy who take great care to investigate the prioblem and sorted it perfectly (just a dodgy plug).
if they rebulit the engine then how come it's misfiring on four cyllinders?? most indys try to make out they're you're best mate and not like the OPC - don't fall for that old flannel: they are garages and just like any other business don't want to accept liability for their negilgence. they should sort this for you free of charge
did you say you paid them 8.9k for a rebuild? they should be ashamed that it's misfiring let alone having the cheek to try to charge you to fix it
Misfiring is generic description for lots of problems, e.g. defective coil packs, some kind of air flow switch or faulty plugs. i had a similar problem recently. took it ot one reputable indy who couldn't find what the problem was for luv nor money. took it to another well known indy who take great care to investigate the prioblem and sorted it perfectly (just a dodgy plug).
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