|
Re: fuel pressure loss when car is off
Somewhat model year dependent, but unless its a newer (2003+ maybe) model with the single-line system it can be one of three things (that I know of).....
1. Fuel pressure regulator .. on the fuel rail ...fairly easy to change out.
2. Leaky injector .. on the fuel rail ... hard to detect. If you are lucky it may sound different when compared to its siblings when you listen to it thru a hose or a screwdriver.... while engine is idling.
3. The fuel pump check valve ... in the tank ...ouch! Unfortunately, this gets my bet!
|