Joined
·
1,740 Posts
Ok,
My first question is about KNOCK. I'm beginning to suspect that my car has been KNOCKING, and not something worse.
The odd thing is that there is no MIL/DTC indicating that the car is KNOCKing... but it's quite loud.
Just how bad can KNOCK be on a 5th Gen before you actually get a MIL?
I recently got a #61 DTC/MIL that indicates the primary O2 sensor is slow to respond. I reset the mil and it went away.
I then went out and got a bottle of RedLine Injector cleaner and ran it threw a tank of gas.
I then replaced the fuel filter (which had about 60000-65000 miles on it).
Oddly, I haven't been hearing the rattle/tick noise from the engine.
Would any of this solve a bad KNOCK problem?
(I'm trying to determine is it really was KNOCK, or if the cold weather is prevent a suspected wrist pin problem from showing.)
The second question deals with spark plugs and fouling.
This is a picture of the spark plug out of my #1 cylinder:
It's been in there about 50000 miles.
What does this grey crap on the electrode mean?? Is this a symptom of anything I should be worried about??
-Gerhard
My first question is about KNOCK. I'm beginning to suspect that my car has been KNOCKING, and not something worse.
The odd thing is that there is no MIL/DTC indicating that the car is KNOCKing... but it's quite loud.
Just how bad can KNOCK be on a 5th Gen before you actually get a MIL?
I recently got a #61 DTC/MIL that indicates the primary O2 sensor is slow to respond. I reset the mil and it went away.
I then went out and got a bottle of RedLine Injector cleaner and ran it threw a tank of gas.
I then replaced the fuel filter (which had about 60000-65000 miles on it).
Oddly, I haven't been hearing the rattle/tick noise from the engine.
Would any of this solve a bad KNOCK problem?
(I'm trying to determine is it really was KNOCK, or if the cold weather is prevent a suspected wrist pin problem from showing.)
The second question deals with spark plugs and fouling.
This is a picture of the spark plug out of my #1 cylinder:

It's been in there about 50000 miles.
What does this grey crap on the electrode mean?? Is this a symptom of anything I should be worried about??
-Gerhard