champion plugs #$%&*&@)!
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Mountain Pass
Joined: Nov 2005
Posts: 172
Likes: 17
From: Claremore OK
champion plugs #$%&*&@)!
Changed my plugs about 7 months and 10K miles ago and ever since I've been haunted by a mysterious rough idle. I installed the Champion plugs and I thought I was happy about that.
The engine showed no codes. I just could feel it shudder ever so lightly. I replaced the boots with no change to the situation.
I had tried to convince myself, that is just how she runs now.... but I just couldn't get used to it. Recently I pulled a loaded trailer across the country and I really could feel it shudder when I was sitting idle - still no codes.
I decided to pay for a diagnostic ($90) at a dealer that I trust. They said they isolated the miss to the #8 cylinder but agreed that it was very subtle and showed no codes. Then they advised me to go ahead and change the plugs since I was at 91K miles now and informed me there was a potential issue with these plugs. The service advisor was very surprised when I told him I already had changed my plugs and followed the TSB. He decided to just let me talk to the tech since I knew more about it than he did.
He told me he had switched the COP on #7 and #8 and the miss did not move. He said he also tested the fuel injector.
As soon as I told the Mechanic I had installed Champion plugs he said "thats the problem" and advised me that he has seen this before. He strongly recommended I switch back to Motorcraft plugs.
Well - today I put in a new set of Motorcraft's and she purrs just like a kitten.
When I was a kid messing with my hotrod mustangs I never trusted champion plugs. Wish I'd stuck with that!
Anyway - Today my '06 has 91K miles on her and she's running as good as the day I bought her (she had 12 miles on her that day).
The engine showed no codes. I just could feel it shudder ever so lightly. I replaced the boots with no change to the situation.
I had tried to convince myself, that is just how she runs now.... but I just couldn't get used to it. Recently I pulled a loaded trailer across the country and I really could feel it shudder when I was sitting idle - still no codes.
I decided to pay for a diagnostic ($90) at a dealer that I trust. They said they isolated the miss to the #8 cylinder but agreed that it was very subtle and showed no codes. Then they advised me to go ahead and change the plugs since I was at 91K miles now and informed me there was a potential issue with these plugs. The service advisor was very surprised when I told him I already had changed my plugs and followed the TSB. He decided to just let me talk to the tech since I knew more about it than he did.
He told me he had switched the COP on #7 and #8 and the miss did not move. He said he also tested the fuel injector.
As soon as I told the Mechanic I had installed Champion plugs he said "thats the problem" and advised me that he has seen this before. He strongly recommended I switch back to Motorcraft plugs.
Well - today I put in a new set of Motorcraft's and she purrs just like a kitten.
When I was a kid messing with my hotrod mustangs I never trusted champion plugs. Wish I'd stuck with that!
Anyway - Today my '06 has 91K miles on her and she's running as good as the day I bought her (she had 12 miles on her that day).
Senior User
Joined: Dec 2007
Posts: 132
Likes: 0
Sorry you had problems with the Champions. I have heard sporadic complaints about problems, but most reports were positive. That was why I put the Champions in my 2008 Screw two years ago. I now have just over 21,000 mi. on them and, as with your truck, it runs like the day I drove it home. Just another perspective. Best to use whatever you feel most comfortable with.
HYPO
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