5.4L 3V Owners: Check your Champion 7989 Replacment Plugs!
#1
5.4L 3V Owners: Check your Champion 7989 Replacment Plugs!
Round 1 - 12/29/2008
If you've swapped out your 2 piece plugs for the champion 7989 replacement plugs - check them. After a searching relentlessly for a low grade mis fire, after having the computer changed (it died), swapping all the plugs to the champions, dealing with broken plugs, and about to swap all the coils at $45 each, I said, well, just for ****s and giggles, I'm gonna check the "NEW" plug on the cylinder that was throwing the CEL. This is what I find.
Does anyone think this might be why I'm getting a misfire?
Does Champion warranty their plugs?
![Name: downsized_1229081014.jpg
Views: 2640
Size: 46.5 KB](https://www.f150online.com/forums/attachments/v8-engines/30774d1501889538-5-4l-3v-owners-check-your-champion-7989-replacment-plugs-downsized_1229081014.jpg)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Round 2 - 12/14/2009
I figured that I would resurrect this thread from the realms of the archive to show the newest plug burn.
Pulled this plug out of no 7 cyl. Now, if I was smart the first time around, I would have noted which cylinder I pulled the original plug out of swapped COP's with. I believe I pulled the first plug out of no 6, and could have swore that I swapped the COP's between 5 and 6... but I could have very well swapped it between 6 and 7 because they are easier access.
I took all the champions out and went with Motorcraft SP462 / PZT1F, and just like the first round of plug swapping, I used nickel antiseeze on the sleeves.
I'm not sure, but I think something is missing.......... (that's sarcasm)
If you've swapped out your 2 piece plugs for the champion 7989 replacement plugs - check them. After a searching relentlessly for a low grade mis fire, after having the computer changed (it died), swapping all the plugs to the champions, dealing with broken plugs, and about to swap all the coils at $45 each, I said, well, just for ****s and giggles, I'm gonna check the "NEW" plug on the cylinder that was throwing the CEL. This is what I find.
Does anyone think this might be why I'm getting a misfire?
Does Champion warranty their plugs?
![Name: downsized_1229081014.jpg
Views: 2640
Size: 46.5 KB](https://www.f150online.com/forums/attachments/v8-engines/30774d1501889538-5-4l-3v-owners-check-your-champion-7989-replacment-plugs-downsized_1229081014.jpg)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Round 2 - 12/14/2009
I figured that I would resurrect this thread from the realms of the archive to show the newest plug burn.
Pulled this plug out of no 7 cyl. Now, if I was smart the first time around, I would have noted which cylinder I pulled the original plug out of swapped COP's with. I believe I pulled the first plug out of no 6, and could have swore that I swapped the COP's between 5 and 6... but I could have very well swapped it between 6 and 7 because they are easier access.
I took all the champions out and went with Motorcraft SP462 / PZT1F, and just like the first round of plug swapping, I used nickel antiseeze on the sleeves.
I'm not sure, but I think something is missing.......... (that's sarcasm)
![Name: 1214092040.jpg
Views: 2398
Size: 47.0 KB](https://www.f150online.com/forums/attachments/v8-engines/30775d1501889538-5-4l-3v-owners-check-your-champion-7989-replacment-plugs-1214092040.jpg)
Last edited by UCF-150; 12-15-2009 at 07:57 AM.
#3
Good grief!
How many miles were on this plug? It almost looks like the nose has been destroyed by preignition, doesn't it? Except, preignition usually eats up the electrodes.
I wonder if you're running lean?
Faster150, you're too quick for me! I agree that detonation is a good guess too. UCF-150, have you pulled and looked at any of the other plugs?
- Jack
![EEK!](https://www.f150online.com/forums/images/smilies/eek.gif)
I wonder if you're running lean?
Faster150, you're too quick for me! I agree that detonation is a good guess too. UCF-150, have you pulled and looked at any of the other plugs?
- Jack
Last edited by JackandJanet; 12-29-2008 at 11:05 AM. Reason: Added note to Faster150 and UCF-150
#6
#7
Trending Topics
#12
#14
I resently just removed all my plugs from my 3v 5.4 it has 61,000km's all came out perfectly couln't have been happier! I cleaned all the carbon deposits off applied some dielectric grease on the COPS along with anti seize on the shaft of the plug, and just a touch on the threads and I mean just a touch!
I will most likey replace them in the spring with the Autolites from Ford, oh by the way do any parts stores sell these cheaper then the dealer?
I will most likey replace them in the spring with the Autolites from Ford, oh by the way do any parts stores sell these cheaper then the dealer?
#15
I resently just removed all my plugs from my 3v 5.4 it has 61,000km's all came out perfectly couln't have been happier! I cleaned all the carbon deposits off applied some dielectric grease on the COPS along with anti seize on the shaft of the plug, and just a touch on the threads and I mean just a touch!
I will most likey replace them in the spring with the Autolites from Ford, oh by the way do any parts stores sell these cheaper then the dealer?
I will most likey replace them in the spring with the Autolites from Ford, oh by the way do any parts stores sell these cheaper then the dealer?
__________________
Jim
Jim