4 total, 1 each side after the exhaust manifolds, but before the cats, and then 1 each side after the cats.
On a 1999 Ford Expedition ( 4.6 and 5.4 liter V8 engines ) There is ( 1 ) timing CHAIN to EACH cylinder head
I BELIEVE that is the ( 4R70W ) with the 4.6 liter and the ( 4R100 ) with the 5.4 liter
According to the 1999 Ford Expedition owners manual : 4R70W ( which would have been used with the 4.6 liter V8 engine ) 4R100 ( which would have been used with the 5.4 liter V8 engine )
30-45 psi
5 per wheel
According to the engine wiring schematic in my Chilton book : For a 1999 Ford Ranger , 4.0 liter EFI , V6 engine : ( there are 3 oxygen sensors )
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Ford Expedition ( 5.4 liter )
The 1999 Ford Expedition owners manual shows ( 5 W - 30 ) engine oil
The 4.6 liter ( 281 cubic inch ) or the 5.4 liter ( 330 cubic inch )
On a 1999 Ford Expedition 5.4 liter V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
For a 1999 Ford Expedition , 4.6 liter V8 : With engine oil filter change : ( 6.0 U.S. quarts of 5W-30 ) according to the Owner Guide
According to the 1999 Ford Expedition Owner Guide : For the 4.6 and 5.4 liter V8 engines : With engine oil filter change : ( 6.0 U.S. quarts of 5W-30 engine oil )