Most commonly caused by bad belts. It may go away as you rev the engine.
It won't be the engine that's squeaking, it will most likely be a belt, take it to a mechanic to get the belts tightened up.
The firewall is between the engine compartment and the passenger compartment.
The engine compartment would be the area under the hood that the engine sits in.
The engine.
Under the hood where the engine is mounted is the engine compartment.
Loose or worn belt.
The firewall is the steel bulkhead that separates the engine compartment from the driver compartment.The firewall is the steel bulkhead that separates the engine compartment from the driver compartment.
The firewall is the metal wall that divides the engine compartment from the passenger compartment
Check for a worn or loose drive belt.
That's the metal wall that divides the engine compartment from the passenger compartment ( that you see best from the engine compartment )
In a 2003 Ford Taurus : The brake fluid reservoir is in the engine compartment , near the firewall , towards the drivers side of the engine compartment ( the firewall is the metal wall that divides the engine compartment from the passenger compartment )
On a 2000 Ford Crown Victoria : The automatic transmission fluid level dipstick is in the engine compartment It can be found near the firewall ( the metal wall dividing the engine compartment from the passenger compartment ) It is at the rear of the engine , where the transmission bolts to the engine It is on the passenger side of the engine , inside the engine compartment