4 Runner 4WD V6-180.5 2959cc 3.0L SOHC (3VZ-E) (1989)
Fuel Pressure Pulsation Damper: Description and Operation
RH Fuel Rail/Fuel Pulsation Damper
PURPOSE
The fuel pressure pulsation damper smooths pulses from the fuel stream before they reach the injectors.
LOCATION
Located on the fuel rail.
OPERATION
This device reduces pressure fluctuations in the system and helps reduce fuel pump noise. The damper contains no serviceable parts and therefore
must be replaced as a unit, if malfunction occurs.