Caravan AWD V6-201 3.3L (1991)
Pulse Damper: Description and Operation
Fuel Pressure Dampener
The fuel pressure dampener is a reservoir mounted to the return line after the fuel rail and the fuel pressure regulator.
The reservoir dampens pressure pulses by absorbing and releasing a volume of liquid fuel. This minimizes the pulses in the fuel rail caused by the rapid
opening and closing of the fuel injectors.