An antiknock is an additive added to petroleum to reduce the occurrence of engine knock.
what is valve
octane number
I think it might be 'octane number'
Tetra-ethyl lead (phased out)Methylcyclopentadienyl manganese tricarbonyl (MMT)FerroceneIron pentacarbonylTolueneIsooctane
There is 2 of them on that engine, and they both are underneith the intake manifold.You will have to remove the intake to even get to them. Theres no other way.
It is screwed into the lower passenger side of the engine block just in front of the starter. It is round with an electric wire plugged into it.
Richard M. Whitcomb has written: 'Non-lead antiknock agents for motor fuels' -- subject(s): Anti-knock and anti-knock mixtures, Motor fuels, Patents
The sensor senses when the engine is pinging or called spark knock. It then sends a signal to the engine control module. The engine control module then temporarily retards the timing until the pinging stops.
Mary Elizabeth Donovan has written: 'The construction and optimization of a hydrogen atmosphere flame ionization detector for the analysis of antiknock agents in gasoline' -- subject(s): Gasoline, Anti-knock and anti-knock mixtures
Catalytic cracking breaks down larger organic molecules in petroleum into smaller pieces. It doesn't in itself produce "leaded" gasoline, though lead antiknock compounds (or other additives) may be added afterward.
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 )
I have added gas treatment and it doesn't help. I notice the ping on very small hills, these are Florida hills! I usually have to slow down to 45 mph because of the pinging. I doubt its timing, maybe gas? antiknock sensor, not sure what else. Anyone Please!