Fuel pressure question
Thread Starter
Instructor
Joined: Dec 2000
Posts: 124
Likes: 0
From: Huntsville Al
Fuel pressure question
My service manual is no help. With a pressure gauge connected to the fuel rail and the ignition switch on the pressure is 42lbs. Ignition off and after ten minutes the pressure drops to 25lbs. This sounds like a injector or pump leak, what do you think. My 1 year old FMS 22 injectors have various readings from 15 ohms to 20 ohms. Any comments???
Burning Brakes
Joined: Mar 1999
Posts: 858
Likes: 5
From: Fl,USA
Re: Fuel pressure question (LeadFoot)
Pinch off the return line at the tank and then watch the fuel pressure gauge. This will tell you if the injectors are leaking by or if its the regulator causing the drop. Personally in my opinion 10 minutes isnt bad. Probably the regulator is bleeding by. Mine drops failry quickly also and I have no problems.
John
John
