fuel pump regulator test Freelander 1 td4 2003

Landrover go anywhere · Jul 31, 2020

does anybody know if there is a way to test whether the fuel pump regulator works as i have cleaned up one of my injectors and when i try to start it up it but it doesn't. then after a series of test i find out that there is no high pressure but there is low pressure. so i buy a repair kit for the fuel pump regulator but after i fit it still no high pressure. i then take the fuel pump regulator out and see if when i turn on the ignition if that moves but it doesn't. does anyone else have any suggestions of whats wrong. because the next thing i am going to do is to replace the fuel pump regulator. another thing is that when i look on eBay at a new fuel pump regulator the 2001 is different to the one I've in my 2003 Freelander. are they supposed to be the same as i think that my one might not be genuine or that mine is from a different vehicle.

paul99 · Jul 31, 2020

The 2001 model you looked at may have been for the Di L series diesel engine, instead of your TD4 M47 engine. Just a possibility.

GrumpyGel · Jul 31, 2020

Landrover go anywhere said:
does anybody know if there is a way to test whether the fuel pump regulator works as i have cleaned up one of my injectors and when i try to start it up it but it doesn't. then after a series of test i find out that there is no high pressure but there is low pressure. so i buy a repair kit for the fuel pump regulator but after i fit it still no high pressure. i then take the fuel pump regulator out and see if when i turn on the ignition if that moves but it doesn't. does anyone else have any suggestions of whats wrong. because the next thing i am going to do is to replace the fuel pump regulator. another thing is that when i look on eBay at a new fuel pump regulator the 2001 is different to the one I've in my 2003 Freelander. are they supposed to be the same as i think that my one might not be genuine or that mine is from a different vehicle.

When you say there is no pressure, how do you know this?

If its from diagnostics, its just as likely to be the sensor or its loom connector that's faulty.

GrumpyGel · Jul 31, 2020

paul99 said:
The 2001 model you looked at may have been for the Di L series diesel engine, instead of your TD4 M47 engine. Just a possibility.

There is no 2001 model L Series and pretty sure it does not have a regulator as such in its pump its more of an electro mechanical adjustment of flow as it does not build pressure in a rail.

paul99 · Jul 31, 2020

Almost certainly right, GrumpyGel, I just knew that the engine changed around 2000 to 2001, and have almost bought a few L Series parts myself before luckily spotting my impending mistake. The other likely reasons of a different look to the pump regulator are a design update or a pattern part instead of OEM original.

Nodge68 · Jul 31, 2020

Landrover go anywhere said:
does anybody know if there is a way to test whether the fuel pump regulator works as i have cleaned up one of my injectors and when i try to start it up it but it doesn't.

A diagnostic read will show up a regulator fault, if the coil has failed.

Landrover go anywhere · Jul 31, 2020

GrumpyGel said:
When you say there is no pressure, how do you know this?

If its from diagnostics, its just as likely to be the sensor or its loom connector that's faulty.

i have undone the high pressure pipe to the fuel rail when trying to fire it up and there is no fuel coming from it

Landrover go anywhere · Jul 31, 2020

GrumpyGel said:
There is no 2001 model L Series and pretty sure it does not have a regulator as such in its pump its more of an electro mechanical adjustment of flow as it does not build pressure in a rail.

paul99 said:
Almost certainly right, GrumpyGel, I just knew that the engine changed around 2000 to 2001, and have almost bought a few L Series parts myself before luckily spotting my impending mistake. The other likely reasons of a different look to the pump regulator are a design update or a pattern part instead of OEM original.

the plug on my fuel pump regulator for electricial wires are on the side so that it faces downwards instead of like the photo here

paul99 · Aug 1, 2020

I think you have had a copy part. All the ones I see on eBay have the connector straight out of the back, the first I saw with a right-angle connector was a Mercedes specification part. I'll try to remember to check mine on the car in the morning.

Nodge68 · Aug 1, 2020

Landrover go anywhere said:
the plug on my fuel pump regulator for electricial wires are on the side so that it faces downwards instead of like the photo

The photo shows the correct regulator. Any other type isn't correct, and might not work as expected.

Landrover go anywhere · Aug 4, 2020

here is some more information about the when the ignition is on we are getting a reading from the fuel rail sensor of 0.5 volts but when we crank over the engine it only goes up to 0.55 volts

Landrover go anywhere · Aug 4, 2020

does anybody know of a test for the fuel pump regulator when it's off the vehicle?

Nodge68 · Aug 4, 2020

You can hear it click if you apply a voltage across the terminals, but if it's the wrong regular, there's no guarantee it'll work on the TD4 pump.

Landrover go anywhere · Aug 8, 2020

Nodge68 said:
You can hear it click if you apply a voltage across the terminals, but if it's the wrong regular, there's no guarantee it'll work on the TD4 pump.

thank you

Landrover go anywhere · Jul 1, 2022

Freelander got stolen in January 2021

fuel pump regulator test Freelander 1 td4 2003

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