You don't know unless the car is doing certain things. What is the car doing to make you think of those 2 parts.
No you dont have to change the fuel pressure regulator unless there was something wrong with it to begin with.
how do you replace a transmission pressure control solenoid in a 2003 chevrolet impala
Where is the fuel pressure regulator located on a 1998 Chevy van
Not unless you BROKE it.
The 1974 Chevy truck has a mechanical fuel pump with a built in pressure regulator.
The mechanical fuel pump regulates the fuel pressure. This truck is not fuel injected. It has a carburetor.
where is the fuel pressure regulator on1991 lumina 3.1 /
It controls / regulates the fuel pressure.
The pressure regulator is located under the upper intake manifold. Find your fuel lines entering the manifold (right behind where the air enters the manifold)...the pressure regulator is on the bottom side of that cluster*%$. You will need to remove the upper manifold to reach it and change the regulator.
The fuel pressure regulator is located in the throttle body.
Fuel Pressure Regulator is located on the fuel rail.
Voltage regulator? Inside the alternator. Fuel pressure regulator? Inside the throttle body.