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My 2004 Cayenne started missing. This happened pretty much after I put some fuel in it that may have been bad. I tried using fuel treatment, gas dry, etc but it still kept missing. Finally the CEL went on, code reader pulls cylinder misfire on 2,3 and 5
since the car has 107k on it and has never had coils or plugs I figured it was time since I know that is a common cause if misfire.
when I did the job I discovered that the coils were covered in a oily slime as well as the spark plugs. Only two cylinders were basically clean. The plug threads were covered in this crap too
please pics. I'm assuming this is not normal but is it simply from having bad/cracked coils or is more going on?
Spark plug gaskets come to mind.
im a decent amateur work on many of my vehicles, so any leads would be appreciated
2002 911 C2 Coupe
I'm having the classic misfire on cylinder 1 when the car is wet. I used contact cleaner on the ignition wire plug into the coil and it works fine for now. I/m sure when it gets rained on it will misfire again. Already replaced spark plugs. I discovered there is a tear in the little orange gasket (green arrow in photo) on the ignition wire connector and water is getting in there when it rains. Anybody know where I can find a replacement without buying a new $812 engine wiring harness?
2006 CS Ti. Approx 130,000 miles
Recently the CEL came on. My OBDII reader showed misfire for all cylinders (this was on a cold start, so not warmed up yet). Previously it had shown misfire in the ready list so I figured this has been intermittent for a while although the car has been driving fine. No issues with power, hesitation, fuel mileage, etc. So, I went ahead and ordered the coils and plugs and changed them today. Every coil looks perfect. No signs of cracking anywhere. The plugs also looked absolutely fine. What I'm figuring (hoping?) at this point is the coils themselves are failing. See the link for pics. The service history I have shows these were changed at 102,000 miles with the 002 part. The coils I installed are 012. Not sure this is going to make any difference but time will tell.
See coils and plugs here.
I am the original owner of a '99 C2, black on black, approaching 60k miles. My Indy recomended oil change and filter, fuel filter, air filter, belt replacement, and it needed a battery. During plug removal, he discovered four or the six coils were cracked! One was pretty bad.; I'm surprised it ran that well. He could only get four Beru's on such short notice. Total damage with labor was less than $1,100, which I consider quite fair.
Glad I brought it in, and I'll replace the other two when I get down to FL ( I hadn't been driving it much while it was stored in VA).
A few minor leaks from the RMS and on the right side where some sort of sensor enters the engine, but nothing major.
I haven't yet done RMS, AOS or IMS, and while I was there his Mercedes Indy friend called and we're discussing the Carrera. His words - get rid of it!
Well, I am aware of these issues, maybe they are less so for the early 996s. But I will replace them along with the water pump and clutch at 75 k miles if I don't decide to upgrade to another 'play' car.
My Porsche ownership has been wonderful, and I hope all you owners feel the same. Pure enjoyment, a blast on the twisty roads of the BlueRidge Mtns. If only I could get more than 8 k on a set of rear tires!!
2006 S Platinum with 110,000 miles. Bought the Duratec software and cable.
Had a fault on #5 coil back in April, and replaced it. Ran well again for several months, until #8 and #4 showed intermittent issues. Bought 7 more coils and all new plugs, and replaced them all. Wow!!! I thought the throttle response was good before, now she seems to be pulling extremely hard at the reins. What fun to drive, and no idea new plugs and coils could make such a difference. You always hear that plugs, with unleaded gas, will last forever.....case and point, my 2000 Silverado 5.3 at 266k still getting 17mpg and strong with original plugs and wires.
I must also offer a heartfelt thank you to those of you who buy new, and give many of us a chance to enjoy these "broken in" machines within our means. Thought I could catch up some day and order my own, but nay, the new prices continue to run beyond me. It is indeed a privilege to take over their care where you have moved up.
And thank you, Loren, for putting up with us.