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#1
12-21-2010, 05:09 PM
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2001 4.4i X5 Fuel pump problem
Hi All,
Can anyone in the know help me out here? I have been having problems with my X5 for the last few days where it has been difficult to start in the mornings- it would fire up after several attempts, turns over just fine. Once it started up it would be fine all day but the the next morning it would do the same. Anyway the EML came on and I got 2 codesl P1159 and P1161. Then yesterday morning it refused to start altogether- it would just turn over. With the ignition on I could not hear the Fuel pump prime- so I decided to look for the Relay- I found one set of relays in the ECU compartment and one set in the boot area- After doing some digging around, I found that the fuel pump relay would be the green one- I had 2 green ones in the boot area and 2 in the ECU compartment (a few specialists said that it would be behind the glove box but I have no relays in the fuse box area in the glove box) I swapped the green ones over but still nothing- the pump did not prime. The next thing I did was locate the fuel pump under the seat, I sussed that the blue/white wire from the multiplug was the positive for the pump and put a direct 12v feed to it and still got nothing - thinking the pump was dudd I got a new one. I decided to test the new pump before I fitted it, I put a 12v feed to the +ve terminal and grounded the other terminal but the pump did nothing?????!!!! I decided to test the Blue/white wire from the multi-plug and see if by turning the ignition on I get a +ve feed through but this came up with nothing also??!! Can someone please shed some light onto what I am doing wrong? Does anyone know for sure where/which is the fuel pump relay? Also, putting a direct +ve and ground on the fuel pump should this energise it- is my new pump faulty if it does not operate when doing this? Any help would be much appreciated. Ray. 
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#3
12-21-2010, 05:53 PM
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Hello.
I,v just replaced my fuelpump (04 4.8is). Tested the new pump before i instaled it with power from the battery. And it run like it should. The relay is in the glove compartment. You have to remove the glov compartment and remove the fuse box. The relay is on top of the fuse box. You might test the battery voltage at the fuel pump connector with the ignition on with a digital multimeter. Good luck...
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#4
12-21-2010, 06:33 PM
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Quote:
So when you tested the new pump, you just powered it up with positive and negative straight off the battery and the pump ran? Both my old and new pumps do not run when wired directly- this must mean that I am unfortunate that my new pump also is no good- I have ordered a replacement- I shall test that too 2moro. So just to be clear- when I remove the glove box, I just see the fuse box and no relays- Do I have to remove the fuse box behind the glove box to get to the fuel pump relay? do you know what colour it is? Many thanks
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#5
12-21-2010, 06:52 PM
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Yes, when you remov the fuse box, you will find the relay, on top of the fuse box. it,s green and it should be the one furthest foward. (There may be to relay)
The fuel pump should work when you "giv" it electric power. After all it,s just an electric motor...
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#6
12-21-2010, 07:00 PM
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Quote:
Ok, sounds good. I will look for the fuel pump relay behind the glove box. many thanks
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2001 X5 4.4i WHITE-Loaded like a baby's diaper SOLD
Hybrid Mode
