Changed My Spark Plugs Today - 5.4 3V
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Senior Member
Joined: Jun 2005
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From: Ashburn, Virginia
Originally Posted by Tbird69
Good job!
I'm at about 40K now so I think I'll pull mine this summer and get it over with. I have heard that the "normal" style plugs don't work too well in these modular engines. I remember reading here that someone installed the Brisk plugs and after 500 or 1000 miles they went back to the stockers because it started running rough. Hopefully your experience is better, keep us in the loop!
I'm at about 40K now so I think I'll pull mine this summer and get it over with. I have heard that the "normal" style plugs don't work too well in these modular engines. I remember reading here that someone installed the Brisk plugs and after 500 or 1000 miles they went back to the stockers because it started running rough. Hopefully your experience is better, keep us in the loop!
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Joined: Jun 2005
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From: Ashburn, Virginia
Originally Posted by bamorris2
What does TP think of these plugs on an otherwise stock 5.4? Is he a big supporter of them?
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Brisk 3VR17YS
I Bought The Brisk 3VR17YS From Brisk USA, This Is The Plug Number They Recommended For My 2005 FX4, I'm Replacing My Plugs And Injectors Next Week.
This Is The Same Plug Number As My Brother's Brisk Plugs And He Has A 2005 Mustang GT, And His Car Runs Good.
This Is The Same Plug Number As My Brother's Brisk Plugs And He Has A 2005 Mustang GT, And His Car Runs Good.
Technical Article Contributor
Joined: Jan 2007
Posts: 10,636
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From: Vernon, NY
Originally Posted by FX4&EXCURSION
I'm not sure of the 4.6 plugs, but on the 5.4 Ford says 100k. I would never let them go that long as my belief is Ford rates the plugs so high in order to advertise lower cost of ownership. I'm comfortable with changing them every 30-35k. Heck even after pulling mine today at 36k with the amount of carbon they did have what they would look like at 100k
I think 30k for plugs is good.
But I've gotten a 100k out of set of stock Motorcrafts. So who am I to say. :santa:
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Joined: Oct 2006
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From: Germany
Originally Posted by ManualF150
DaimlerChrylser recommends 20k...
I think 30k for plugs is good.
But I've gotten a 100k out of set of stock Motorcrafts. So who am I to say. :santa:
I think 30k for plugs is good.
But I've gotten a 100k out of set of stock Motorcrafts. So who am I to say. :santa:
Sorry, but no more DaimlerChrysler
Normal changing interval of most european vehicles is 30000km some are good for 45000km.
A few Toyota used to have 100000km platinum Plugs for plenty plenty Euros each. 100000mls thats 168000km and there is nothing like that in Vehicles over here. But i guess Ford knows how to make em
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Joined: Jan 2007
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From: Ohio
I deal with a salesman that has an 04 F-150 with the 5.4 3v. He has 180,000 miles on the original everything. All he has done is changed oil, filters and tires. He's nver even had it back to the shop since it was new! Truck still runs great and he's claiming 18-20 mpg on the highway. His engine is actually quieter than mine and I only have 17,000 miles.
Last edited by ihctractor; Feb 5, 2008 at 07:30 AM.
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From: Ashburn, Virginia
Originally Posted by UR2COOL-FX4
I Bought The Brisk 3VR17YS From Brisk USA, This Is The Plug Number They Recommended For My 2005 FX4, I'm Replacing My Plugs And Injectors Next Week.
This Is The Same Plug Number As My Brother's Brisk Plugs And He Has A 2005 Mustang GT, And His Car Runs Good.
This Is The Same Plug Number As My Brother's Brisk Plugs And He Has A 2005 Mustang GT, And His Car Runs Good.
On another note, so far so good on my brisk plugs. Only been a couple of days, but really see no difference in performance other than being a little more perky off the line. I plan to fill up today with 93 Shell and will make note of my gas mileage with my 93 Performance Tunes. During the week I do mostly highway back and forth to work at 90 miles round trip. I keep everyone posted.