Pretty major undertaking. Taking it out is a lot easier than putting it back IN however. You should start by picking up a comprehensive mechanic's manual for that make/model.
On a 1996 Ford Aerostar , 4.0 liter V6 engine : The oil pressure sending unit for the oil pressure gauge is on the drivers side of the engine below the power steering pump
Bank 1 is the passenger side of your engine in a 1996 Ford Aerostar
According to the ( 1996 ) Ford Aerostar Owner Guide : With engine oil filter change : The 4.0 liter V6 engine takes : ( 5.0 U.S. quarts / 4.7 liters ) * 5W-30 is the PREFERRED oil
No , both the 3.0 and 4.0 liter Over Head Valve ( OHV ) engines used in a 1996 Ford Aerostar use ( 1 ) timing CHAIN
Yes, a 1991 3.0-liter engine can fit into a 1996 Aerostar, as both vehicles are part of Ford's family of vehicles that share similar engine configurations. However, compatibility may depend on specific components such as wiring harnesses and engine mounts, so some modifications might be necessary. It's advisable to consult with a mechanic or a specialist to ensure a proper fit and integration.
Look at the lower rear end of the engine
According to my Haynes repair manual : For the 4.0 liter OHV / pushrod style engine used in a 1996 Ford Explorer : ( YES , in order to remove the timing chain cover you have to remove the oil pan , which involves removing the engine from the vehicle )
Either the 3.0 liter VULCAN engine or the 3.0 liter DURATEC engine
The PCM ( Powertrain Control Module ) will limit the RPM of the engine in order to protect the engine ( on the 4.0 liter V6 engine it starts to cut back on the fuel at 5200 RPM ) when it is in gear and I believe around 3000 RPM in neutral or park when there is no load on the engine
Not even close
You could have a 2.3 liter - 4 cylinder engine , a 3.0 liter - V6 engine , or a 4.0 liter V6 engine
No , the 1996 Ford Explorer ( 4.0 liter V6 engine and the 5.0 liter V8 engine ) has a timing CHAIN