Poll about 5.4l V8 and mileage

[99EB4x4]

99 Eddie Bauer 175k miles. 5.4 4x4 4r100. Bought it with 160k miles and a severly knocking engine because previous owner neglected to put oil in it. Got a used 5.4 pi from a 99 f150 that had been totaled with 89k miles. so far ive replaced the plugs, subwoofer, and starter. I thought my new engine was using oil but i discovered the high pressure oil cooler line has a slow leak only when the engine is running. will fix that soon. just chopped off my stock muffler and put on a flowmaster super 44 series tonight, sounds amazing. i noticed there is 4 catalytic converters a resonator and a muffler?! wtf is it just me or does this seem like overkill and restrictive?

 

[OwlExpy]

New to me today, 1998

200K and seemingly in good shape, bought from a mechanic. Told me a lady left it with them after a spark plug blow out. Chipped, Custom Exhaust, KN intake...so forth. I have been enjoying learning about my new rig.

 

[OwlExpy]

New to me today

1998 EB 4X4 5.4L; 200K and seemingly in good shape, bought from a mechanic. Told me a lady left it with them after a spark plug blow out. Chipped, Custom Exhaust, KN intake...so forth. I have been enjoying learning about my new rig.

 

[Mako]

2000 EB 143k mi

rebuilt trans at 125k mi. driver window motor replaced, 1 year later the same one is jamming up. Rear differential was whining at 45 mph, now its a loud rumble its been almost a year since I noticed, guess its time to address it. air suspension replaced with coils.

 

[nonwoven29]

2001 EB 4x4 152k miles
1999 XLT 4x4 170k miles

 

[benya21097]

1998
5.4ltr v8
250k miles
Just finished up a rebuilt because of a clog in the oil filter
Run perfect up untill then and now she runs even better

 

[0627Devildog]

No major engine issues on my 2005, but I did have to replace the tranny at 93k. . . .I am at 103k now and the engine and replacement tranny are going strong.

 

[Mako]

Rebuilt tranny at 120,000 mi

 

[WCAWI]

2007 Limited. 72000 mi and no problems so far.

 

[John Stocker]

5.4 mileage

215,950