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2016 F150 Ecoboost 3.5 P0420 and P0430

 
  #16  
Old 04-15-2019, 10:03 PM
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Ford390
Is that a photo of a plug close-up?
Thanks
 
  #17  
Old 04-16-2019, 09:09 AM
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Originally Posted by ford390gashog View Post
My thoughts are the life of the cats have been severely reduced. The reduction of ZDDP and phosphorus in SN oil is to combat the destruction of palladium used in modern systems but isn't really meant to deal with that much oil consumption.
Thank you gashog.
 
  #18  
Old 04-16-2019, 09:41 AM
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Originally Posted by reamer View Post
Ford390
Is that a photo of a plug close-up?
Thanks
Yes that is a very close up image of a spark plug with less than 30k on it. That carbon tracking is from a micro crack and causes the spark to jump and leak through the boot to ground. This is why boots are a replacement item and to be very careful not to side load a spark plug when installing them and change them every 60k. Some of us do 30k because the gap has changed so much.
 
  #19  
Old 04-16-2019, 09:50 AM
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Originally Posted by ford390gashog View Post
Yes that is a very close up image of a spark plug with less than 30k on it. That carbon tracking is from a micro crack and causes the spark to jump and leak through the boot to ground. This is why boots are a replacement item and to be very careful not to side load a spark plug when installing them and change them every 60k. Some of us do 30k because the gap has changed so much.
So, should a guy put anti-seize or something else on the plugs if we are removing them frequently? Id hate to be fighting plugs ever 30,45,60k.
 
  #20  
Old 04-16-2019, 10:21 AM
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Originally Posted by smokewagun View Post
So, should a guy put anti-seize or something else on the plugs if we are removing them frequently? Id hate to be fighting plugs ever 30,45,60k.
When I had my airplane, I always used anti-seize on the plugs, but there were serious heat considerations in an aircraft air-cooled engine. I can't imagine that it would be ill-advised, but I honestly don't know. Look forward to hearing from someone on the list who might be familiar with any potential issues.
 
  #21  
Old 04-16-2019, 01:14 PM
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My 2013 started throwing the PO 430 code. I reset the code multiple times. It would take between 20 to 70 miles before it would return. My mechanic friend told me replace both O2 sensors first. Said testing the O2 was a waste of time, too many variables. He said they should be replaced as a pair because they communicate back to each other, if one is off the code will trip. Well replaced the 2 on the driver side (code indicated that side) did a Kam reset and have put on 12,000 since and no code. I think this should have been your first step. Good luck.
 
  #22  
Old 04-16-2019, 03:53 PM
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Originally Posted by ford390gashog View Post
But the EcoBoost can't run 100k on plugs that's well known. They just low grade misfire and burn the cats out. General consensus here is every 60k with boots. The smallest carbon tracking will cause misfires. There was a TSB for all 3.5 engines built prior to 2014. Below is the carbon tracking condition
Very interesting and thanks for the info because I had no idea about the TSB.
 
  #23  
Old 04-16-2019, 08:34 PM
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While driving today. The CEL went away. No longer showing on the dash. It was for the p430 for the left cat. Would you guys suggest changing the plugs and boots and seeing if the code comes back? Or just go ahead and change the cat also?
 
  #24  
Old 04-16-2019, 10:09 PM
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Originally Posted by smokewagun View Post
So, should a guy put anti-seize or something else on the plugs if we are removing them frequently? Id hate to be fighting plugs ever 30,45,60k.
Plugs are to be coated in Motorcraft XL-2 nickel anti-seize apply lightly to the threads.
 
  #25  
Old 04-16-2019, 10:14 PM
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Originally Posted by poofyo101 View Post
While driving today. The CEL went away. No longer showing on the dash. It was for the p430 for the left cat. Would you guys suggest changing the plugs and boots and seeing if the code comes back? Or just go ahead and change the cat also?
Only change the plugs and boots, avoid the CAT for now.
 
 


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