how remuve and remplece
pvc
The ( 2 ) valve covers are on top of the engine ( V6 and V8 ) on each side of the engine
yes
The head has to come off to replace a valve. That'a a pretty big job.
On a 1998 Ford Explorer, the EGR valve is located on the intake manifold. It is behind the throttle body.
On the 1998 Ford Explorer Sport with 4.6L V8 the positive crankcase ventilation (PCV) will be located on the driver's side of the vehicle. On top of the front-left engine valve cover will be a grommet and hose assembly. In between the grommet and hose, and attached to the valve cover is the PCV valve.
4.0 liter v6 ======================================================== The above answer is partially correct If you have a 1998 Ford Explorer ( XLT trim ) You could have a 4.0 liter Single Over Head Cam ( SOHC ) V6 engine or a 5.0 liter V8 engine ( which is an Over Head Valve / pushrod design engine )
THERE ISNT ONE THERE IS A PCV VENT LOCATED AT THE REAR OF THE ENGINE
Hydraulic.
no
No , the 1998 Ford Explorer came with ( 3 ) engines : The 4.0 liter over head valve / pushrod design engine ( the 8th " character " of the VIN is an " X " ) The 4.0 liter single over head cam ( SOHC , the 8th " character " of the vin is an " E " ) and the 5.0 liter V8 engine which is an over head valve / pushrod design engine , the 8th " character " of the VIN is a " P "
On a 1998 Ford Explorer Sport : If it has the 4.0 litre EFI engine ( which is an over head valve / pushrod design engine / the 8th character of the VIN is an " X " ) there are ( 3 oxygen sensors ) If it has the 4.0 litre SOHC engine ( the 8th character of the VIN is an " E " ) there are ( 4 oxygen sensors )
no , that is not really true, but it is good sense to replace both while you already have engine torn down