P0141 - downstream heated O2 sensor heater circuit fault ( Bank 1 ) according to my Haynes repair manual ----------------------------------------------------------------------------------------- P.S. bank 1 is the passenger side of the engine , the downstream oxygen sensor is after the catalytic converter ( or sensor 2 )
The 5.4 liter V8 engine , available in the 1998 Ford Expedition has a Coil On Plug ( C.O.P. ) ignition system
According to the 1998 Ford Expedition owners manual : For either the 4.6 liter or 5.4 liter V8 engines : With engine oil filter change : ( 6.0 quarts )
6 not including starter bolts
5 qts. to 6 qts. Max.
No , the E4OD automatic transmission that is used with the 5.4 liter V8 engine in a 1998 Ford Expedition does not use a clutch
Either a 4.6 liter V8 or the 5.4 liter V8 ( 281 cubic inch or 330 cubic inch )
Its on top of the a/c accumulator....................
According to the 1998 Ford Expedition Owner Guide : For the 5.4 liter V8 engine : ( 230 horsepower at 4250 RPM and 325 lb. ft. torque at 3000 RPM )
According to the 1998 Ford Expedition Owner Guide : For the 4.6 and 5.4 liter V8 engines : ( Motorcraft FL-820-S engine oil filter )
I assume you have the 5.4 liter V8 engine with the ( 8 ) individual coils : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of 1998 Ford Expedition
On a Ford 5.4 liter V8 engine : ( in a Ford Expedition , Ford F-150 etcetera ) Bank 1 is the passenger side of the engine , Bank 2 is the drivers side
the number 5 cylinder on a 1998 Ford Expedition 4.6 liter v8 is the first one you see on the drivers side front.