F150Sport,

Thanks for the help! Looks like we have the same truck except for the color! Did this make a big difference to your truck?

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Paul...
99 F-150 XLT SC Sport, 4.6L, Auto, Captain Chairs, Class III Towing Package, 3.55 LS, Sliding Rear Window, White, 4X2, CD, Soft Factory Tonneau Cover, K&N Filter, WMS Velocity Tube, Line-X Spray on Bed Liner, Gibson Side Swept Cat Back System, F150online Decal...
More to come!

ptarnuzzer@megsinet.net

 

Sounds like this is common with both the 4.6L and 5.4L engines.

My 98 F-150 (5.4L) at idle would shake the arm rest..but seemed to run/idle OK to me. So far, the new truck idles MUCH better, no shake at all in the arm rest.

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2000 F-150 XLT, 4x2, 5.4L Supercab, Styleside, Black with silver two-tone, 3.55, class III towing package with heavy duty cooling package, 4 wheel disk ABS, overhead console, sliding rear window, keyless entry, dark graphite interior, in dash CD, Pendaliner bedliner, K&N air filter, rubberized undercoating, cabin filtration system, Bugflector II, 5W-30 Mobil 1, engine build 10/4/99

 

PaulT,
Went to check the signal at the TPS yesterday and measured hardly any signal on the MIDDLE wire of the sensor like the procedure says.
Although I read 1.034 VDC at the top wire. Wasn't sure what was going on so I didn't mess with the TPS setting.

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'99 Black F-150 Sport
Extended Cab
4.6 Romeo Triton
3.55 Rear-end, Black low- profile bug deflector.

Wife's wheels: '91 Green Ranger XLT 3.0L
http://hometown.aol.com\riadan1

 

That is exactly the post I would have posted, had I returned in a timely manner...
busy, busy, busy....Perhaps the sensor on the newer trucks is a little different...I would try adjusting the settings, but record where you started from, in case you need to return everything to it's original spot.
My original setting was 1.40 VDC from the factory I believe, so my adjustment was needed.

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'97 S/C XLS black/silver 157" WB, 4.6/auto, 3:08, home made custom tube grille, terminator muffler, phantom sweep wiper switch(factory installed), a few billet aluminum goodies (the list grows), airbox mods, TPS tuned
email: bazils@hotmail.com

 

Alright so I drive a 2003 chevy tahoe, but my brother drives a 99 4.6l and he had this same issue, we switched trucks so I could take a look and I quickly found the issue with his. The hose connected to the pcv had a decent sized hole in it where it connects to the back of the manifold, I'm waiting to do the actual repairs, but I wrapped some tape around the hose as a temporary fix and with that done the trucks runs and idles normal. If you haven't foind and fixed yours yet I can post a picture of which hose it is I found a hole in

 

Do you realize that the post you quoted was made in 1999? I understand that you would like to help, and that's encouraged, but could you please stick to current issues?

The hole in the PCV elbow is a common issue on these trucks, and will quite often trip a CEL with lean codes.