Spark Plug Ignition Coil Rust/Corrosion
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6th Gear
Joined: Jul 2008
Posts: 1,174
Likes: 13
From: Ohio
Spark Plug Ignition Coil Rust/Corrosion
I tried to post a new thread for this, but the site seems to be having issues with that. Discovery was related to this carbon buildup & seafoam experiment, so please bear with me...
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I've heard it said somewhere before that you should replace your spark plugs after doing a big Seafoam treatment.
Now, I'm no car expert, but this doesn't look very healthy.
http://fishbert.imgur.com/ignition_coil
(cylinder #2, if you count from passenger to driver side… don't know if that's correct counting, but that's how I'm going to define it)
That was the worst of them. Cylinder #1 was about half as bad, and cylinders 3 & 4 were very minimal.
A couple questions:
1) should I replace only the coils that look bad, or should I do all 4 at the same time?
(seems obvious I shouldn't just leave it the way it is)
2) what's a good way to clean out the cavity the coils fit in to? do I need to?
(it's difficult to see clearly down that hole with how reflective the surface is, so I can't tell if the buildup is limited to the coil or not)
-------
I've heard it said somewhere before that you should replace your spark plugs after doing a big Seafoam treatment.
Now, I'm no car expert, but this doesn't look very healthy.
http://fishbert.imgur.com/ignition_coil
(cylinder #2, if you count from passenger to driver side… don't know if that's correct counting, but that's how I'm going to define it)
That was the worst of them. Cylinder #1 was about half as bad, and cylinders 3 & 4 were very minimal.
A couple questions:
1) should I replace only the coils that look bad, or should I do all 4 at the same time?
(seems obvious I shouldn't just leave it the way it is)
2) what's a good way to clean out the cavity the coils fit in to? do I need to?
(it's difficult to see clearly down that hole with how reflective the surface is, so I can't tell if the buildup is limited to the coil or not)
I tried to post a new thread for this, but the site seems to be having issues with that. Discovery was related to this carbon buildup & seafoam experiment, so please bear with me...
-------
I've heard it said somewhere before that you should replace your spark plugs after doing a big Seafoam treatment.
Now, I'm no car expert, but this doesn't look very healthy.
http://fishbert.imgur.com/ignition_coil
(cylinder #2, if you count from passenger to driver side… don't know if that's correct counting, but that's how I'm going to define it)
That was the worst of them. Cylinder #1 was about half as bad, and cylinders 3 & 4 were very minimal.
A couple questions:
1) should I replace only the coils that look bad, or should I do all 4 at the same time?
(seems obvious I shouldn't just leave it the way it is)
2) what's a good way to clean out the cavity the coils fit in to? do I need to?
(it's difficult to see clearly down that hole with how reflective the surface is, so I can't tell if the buildup is limited to the coil or not)
-------
I've heard it said somewhere before that you should replace your spark plugs after doing a big Seafoam treatment.
Now, I'm no car expert, but this doesn't look very healthy.
http://fishbert.imgur.com/ignition_coil
(cylinder #2, if you count from passenger to driver side… don't know if that's correct counting, but that's how I'm going to define it)
That was the worst of them. Cylinder #1 was about half as bad, and cylinders 3 & 4 were very minimal.
A couple questions:
1) should I replace only the coils that look bad, or should I do all 4 at the same time?
(seems obvious I shouldn't just leave it the way it is)
2) what's a good way to clean out the cavity the coils fit in to? do I need to?
(it's difficult to see clearly down that hole with how reflective the surface is, so I can't tell if the buildup is limited to the coil or not)
FWIW, just checked my coils, they have none of that corrosion...I'm just under 50k.
Thread Starter
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6th Gear
Joined: Jul 2008
Posts: 1,174
Likes: 13
From: Ohio
That note at the top was something I added when I posted it over here (NAM wasn't letting me post a new thread last night, but worked this morning). It should've been removed here, but I forgot (and am leaving it now so this exchange makes sense
). The intent was to say the question was loosely related to the Seafoam work I had been discussing earlier in that thread (and could be argued on-topic, given the new thread difficulties).I discovered the corrosion because I went to change the spark plugs after experimenting with Seafoam this past weekend. I wouldn't have gone to touch that plugs if I hadn't, so it would have remained undiscovered. That's all.
It appears to be just a bit of surface corrosion/rust...at this pint I doubt it is affecting anything...keep an eye on it...check the gasket at the top...
The problem on gen1 cars is very different...so when reading about sparkplug/coil corrosion remember to pay attention to the year car...
The problem on gen1 cars is very different...so when reading about sparkplug/coil corrosion remember to pay attention to the year car...
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