Mechanics

01 FUEL PUMP WONT COME ON

2001 Volkswagen Jetta • 150,000 miles

Can you tell me where the fuel pump relay location is on a 01 jetta VRS 2792cc.
Avatar
J.stieg
September 17, 2012.




It's on the fuse panel and thirteen panel box. Pic enclosed.


Hmac300
Sep 17, 2012.
Not off to a good start.
I don't see the distribution box like the one you posted.
I see one small box it has one relay three empty spots for relays.
The jetta is gas if that makes a difference.


Tiny
J.stieg
Sep 17, 2012.
It's under th left side of dash


Hmac300
Sep 18, 2012.


Tiny
Exovcds
Sep 18, 2012.
I have replaced lots of in tank fuel pumps before. But was just wondering if this VRS jetta has a fuel pump in the tank?


Tiny
J.stieg
Sep 18, 2012.
Yes, under the passenger rear seat... can be checked via current ramping
to see what the pump current demand looks like.

http://www.youtube.com/watch?v=7HHoDhR47ZI&feature=plcp

Thomas


Tiny
Exovcds
Sep 18, 2012.
Tap on the bottom of the gas tank (palm of hand, don't go nuts)
while someone is cranking the engine.

If she starts, pump has a worn spot.

Thomas


Tiny
Exovcds
Sep 18, 2012.
That's easy just lifting up the rear seat wish they were all like that.
Pulled out pump, checked out fine, put every thing back together runs good. Its possible there was a dead spot in the motor or a loose crimp.

When ever there is a problem with something that has a relay involved I always start troubleshooting there first, to see if the problem is upstream or downstream.


Tiny
J.stieg
Sep 18, 2012.
Yes, dead spot on contact area for brushes. If you had no power at
the pump, then it would be a relay / power supply issue.

Have a shop check the waveform of the current to determine if there
is a dead spot.

The next time she doesn't start, tap on the bottom of the tank to
jiggle the pump motor to a good contact. Might not always work.

Thomas


Tiny
Exovcds
Sep 18, 2012.
Here's a clip of the difference between a bad & good pump:

http://www.youtube.com/watch?v=zp9iOiCwiew

Thomas
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Tiny
Exovcds
Sep 19, 2012.

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