There is a lot of history with Piston Slap in the 5.4l engine documented on this site, most in 97-99 engines. It was reported that it was fixed in the 2000 engine but that is refuted by the experiences of several 2000 owners.

I have not heard in any of these posts of any 2001 5.4l owner experiencing Piston Slap. Please reply as to whether or not you have experienced it and how many miles you have on your 5.4l.

This info is important to us prospective Ford Truck buyers. Thanks in adavance...

 

3500 miles and no piston slap problems yet.

 

Took my 2000 today to the garage because my engine developed that all to familiar sound on cold startup and it was confirmed my engine built 1/7/00 has a confirmed case of Piston Slap. I just bought the truck end of January 2001. Its was a new 2000 leftover with 150 miles on it and now it has 3,000 miles on it with an engine that needs replaced. Appears the problem is not fixed and Ford is well aware that there still may be problems according to the head mechanic where I got my truck serviced today.

 

So far, so good. 6200 miles.

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I own a 2001 Ford pickup with the 5.4L engine in it. There is no more knock to it. See I owned a 2000 Ford pickup with the 5.4L engine in it , and that engine always had a knock to it in the morning and sometimes running during the day. I noticed that between 2000 and 2001, the 2000 required
5W-30 and now the 2001 requires 5W-20. I had talked with ford engineers of the 5.4 and they said that the bearings inside are so tight that the oil wasn't getting to the bottom fast enough so they dropped the volocity of the oil. Now the thinner oil works much better and they said with that change the engine life of the 5.4L should be longer.

 

Nothing in the 2001's - that's what I like to hear...

 

my friends 2001 F-150 Supercrew 4x4 w/ a 5.4l motor has 27,000 mile on it. it still running fine.no funny noises yet

 

1000 miles on our Expy and quiet as a mouse.
And smooth as silk. Hope it stays that way

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2001 EB Expy 4x2 5.4 3:73
tow package, Black
gray interior
entertainment center
rear captains seats

 

Mileage: 824

Mine is a bit noisy ( but no knocking ) on cold startup, but I'm sure this is normal. Right?
My '99 was a slapper, so I know "that sound" all too well.

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2001 F150 SC w/ Short Box
4X4 Lariat in Black
5.4L
3.55 LS
ORP
Power Moonroof
Heated Captain's Chairs
Tow Package w/ 1.02" radiator
Cab Steps
Bed-X-Tender
Weatherguard Box # 127-5
K&N ( homemade kit! )
Superchip
Delivered 3-7
Toy towed: 2000 Ranger
R-93 w/ 200 Merc

 

My SCrew slaps every morning. I started about 500 miles. Lasts about 2 minutes. The problem still exists in the 2001.

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2001 F150 Lariat SuperCrew Gen III White Exterior, Medium Parchment Leather Captains Chairs, 4x4 w/slappin 5.4L V8 3.55LS 6750# GVWR Package
Class III Tow Pkg w/1.02 Radiator "Soon to be 1.42 Radiator"
Sliding rear window
6 CD changer
Mods:
Huskey Liners,
Chrome Stainless Westin Steps,
Michelin LTX M/S 17"
Zaino.
-------------------------
1999 Epedition XLT White Exterior, Medium Parchment Leather Captains Chairs, 5.4L V8, 4x4, 3.73, 6 CD changer Class III Tow Pkg W/2.02 Radiator
F-150 Honeycomb Grille, Michelin LTX M/S 17",
Zaino.
-------------------------
2000 Camaro SS Sebring Silver LS1 M-6 Hurst Shifter Convertable Black Leather 6 Cd Changer
Mods:
SS Grille,
Strut Tower Support Brace,
SLP Stainless Exhaust,
SS Dash Plaque, SS Floor Mats, Fobs
Zaino.
NO RAIN...

 

PSlappinSCrew - When did you order it/take posession of it? Was it an early 2001 or did you just get it?

 

Thought I'd pop this back up to the top. I expected more responses on this topic - anyone else???

 

16K miles on a 5.4 Screw purchased August 00. Smooth as silk. No problems. I'm so excited about my Screw that the only thing that gets slapped is.........er......nevermind.

 

Hope you got the leather seats sundog7 ...

 

Mine does it too, it doesn't do it very often though. Anyone I talk to says who cares though, makes a little noise but not a big deal. Puchased it May 2000 and have put 20,000 on it.

[This message has been edited by OneBadCrewX4 (edited 03-30-2001).]