1999 Jaguar Vanden Plas Does 2 Fuel Pumps One Working Working Replaced

1999 JAGUAR VANDEN PLAS
109,000 MILES
Avatar
ALLSTARFUNDINGSOLUTIONS
  • MEMBER
  • 4 POSTS
Why does my jaguar have 2 fuel pumps? ??
And why is one working and one not working??? I have replaced the one that was not working and still god new one is not working either. And help please. Thanks
Apr 5, 2013 at 9:23 PM
Advertisement
Avatar
ALLSTARFUNDINGSOLUTIONS
  • MEMBER
  • 4 POSTS
Also forgot to mention that I had about 5psi of fuel pressure. This is supposedly with the 2 fuel pumps. I only replaced 1 pump. I dont understand why it still doesn't start.
Apr 5, 2013 at 9:31 PM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
it wont start because it has no fuel pressure. the other pump may have to go as well. then re check pressure.

Roy
Apr 6, 2013 at 6:17 AM
Avatar
ALLSTARFUNDINGSOLUTIONS
  • MEMBER
  • 4 POSTS
Hi thanks for the help. But when I replaced one of the two new fuel pumps I turn the key on and then connected the battery and I held the fuel pump in my hand I heard and felt nothing with the new one
Which would also indicate that if I connected the fuel pressure gauge I still would.. have no fuel pressure. meanwhile the second fuel pump that was inside the tank at this time I could hear that when working. I don't know why one is working and white one is not working. also according to the specs there should be 43 PSI of fuel pressure but how is that separated between two fuel pumps is that the fight it by 2 because of the two of you pumps or what ?????? thanks for all the help
Apr 6, 2013 at 9:49 AM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
is the one you have an external pump or one from inside??? do you have 2 tanks???

Roy
Apr 6, 2013 at 10:45 AM
Avatar
ALLSTARFUNDINGSOLUTIONS
  • MEMBER
  • 4 POSTS
Hi yes there are 2 pumps internally. Only 1 tank. Does anyone know why there are 2 pumps and what is the purpose??? Also how much fuel pressure should each pump should give off? ???
Apr 6, 2013 at 12:01 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.