2003-04 Mach 1 Registry Owners Club - View Single Post

Chances50 · 07-06-2011, 10:47 AM

I'm not sure why but I had problems with autolites fouling out on my truck I had a 03 f150 with the 5.4 and that truck burnt up plugs and coils like crazy. My company truck has the 5.4 as well and it does the same thing except I use motorcraft in it and it hasn't been a much of an issue. I don't know if the plugs were the issue or not but I know when I swapped my 03 back to motorcraft it cut the issue in half. Now when it rains game over both trucks miss like crazy.

07-06-2011, 10:47 AM	#23
Chances50 Registered User Join Date: Jun 2008 Location: Haskell, Ok Posts: 1,325	Re: plugs for 150hp nos I'm not sure why but I had problems with autolites fouling out on my truck I had a 03 f150 with the 5.4 and that truck burnt up plugs and coils like crazy. My company truck has the 5.4 as well and it does the same thing except I use motorcraft in it and it hasn't been a much of an issue. I don't know if the plugs were the issue or not but I know when I swapped my 03 back to motorcraft it cut the issue in half. Now when it rains game over both trucks miss like crazy.