There is no "knock sensor" on a 4.0L engine
I don't believe a 1994 Ford Explorer has a knock sensor - OBD I / EEC IV system
I drive a 1995 Ford Explorer and as far as I know it doesn't have a knock sensor My Haynes repair manual engine wiring schematic shows a knock sensor on the 1996 Ford Explorer - OBD II / EEC V system
It doesn't have a knock sensor on the 4.0 L OHV in a 1993 Ranger ( my 1995 Ford Explorer 4.0 L OHV engine doesn't have a knock sensor either )
As far as I know , the 1994 Ford Explorer - 4.0 L - OHV engine does not have a knock sensor ( in 1996 when Ford went to OBD II / EEC - V the knock sensor was added on the 4.0 L - OHV engine )
Ford did not start using knock sensors on the Ford Explorer engines until 1996, when they switched to the EEC-V system.
It has ( one oxygen sensor ) on the 1991 and 1992 Ford Explorers
I don't think it has a knock sensor ( I know that the 4.0 liter V6 engine in my 1995 Ford Explorer doesn't have a knock sensor )
I don't think it has a knock sensor ( I know that the 4.0 liter V6 engine in my 1995 Ford Explorer doesn't have a knock sensor )
Usually, it is located on the very back, top of the engine, near where the engine and transmission bolt together. There is no knock sensor.
As far as I know it doesn't have a knock sensor , my 1995 doesn't have one according to the engine wiring schematic in my Haynes book ( I believe in 1996 with the EEC- V system , the 4.0 L - OHV has a knock sensor )
You can look up a knock sensor image on the internet. The device consists of a shunt resistor and a thread at one end which allows for it to be threaded into the block.
where is a knock sensor located for a 2001 Ford Taurus se