Maintenance script: Imported from text file

2018-04-05T21:57:25Z

Imported from text file

New page

A '''fuel dampener''' (sometimes called a '''fuel damper''') is a device that dampens (or softens) pulsations in the stream of fuel caused by the fuel pump. This is to reduce hydraulic "noise" in the fuel rails and provide a smooth stream of fuel to the injectors--the constant pulsating caused by the fuel pump would otherwise create a slight "ripple" effect inside the fuel system which could potentially disrupt adequate flow of fuel to the injectors. The fuel dampener consists of a diaphragm and spring, similar to a fuel pressure regulator. However, it does not regulate pressure, and the vacuum-adjustable diaphragm assembly exists to act as a variable "shock absorber," so it can absorb pulsations in the fuel without impeding the flow of fuel to the rail. '''Note''': While similar in appearance, the fuel dampener should not be confused with the [[Fuel Pressure Regulator]]. 
===Location===
[[File:fuelDamper981104-181002.jpg|alt=fuelDamper981104-181002.jpg|thumb|An original fuel dampener.]]
 '''Versions''' 

* Like the fuel pressure regulator, original, from-the-factory fuel dampeners were painted black.
* Replacements are either zinc plated (light-gold colored) or nickel plated (light-silver color). Original fuel dampeners should be replaced at the owner's (or the car's...) earliest convenience, as they've now carried fuel for about 20 years.
* NA and TT fuel dampeners are interchangeable, provided that they're both in good shape. They are the same part.

[[Category:Parts]][[Category:Electronic Fuel Injection]][[Category:Fuel System]]

Fuel Dampener - Revision history

Maintenance script: Imported from text file