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Discovery42024

New Member

• Jan 3, 2024

• #1

I have a discovery 4 that has low rail pressure
Restricted performance came on on motorway and would only restart with what I had at time (deodarnt) after wrecking an earth lead with constant cranking of engine got it on computer and its reading low rail pressure has anyone any suggestions

I think the problem at first was dirty fuel

 

Graculus

Well-Known Member

• Jan 3, 2024

• #2

Fuel filter would be first thing to check / change, although I'd be dropping the tank and checking the tank pump pre-filter and cleaning the fuel tank of any remaining debris. The pump module in the tank was £250-300 last time I looked.

 

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Alsrange

New Member

• Apr 14, 2024

• #3

I have one cost £186

 

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lynall

Well-Known Member

Full Member

• Apr 14, 2024

• #4

Alsrange said:

I have one cost £186

Click to expand...

I have one cost 185 gbp.

 

sierrafery

Well-Known Member

• Apr 14, 2024

• #5

Discovery42024 said:

with constant cranking of engine got it on computer and its reading low rail pressure

Click to expand...

Be more specific if you want proper help... what pressure and which is the exact fault code?... post these informations beside the engine type of your vehicle which is compulsory unless you want us to guess if it's diesel or petrol cos it's a huge difference when it comes to engine management or fuelling

 

Last edited: Apr 14, 2024

Firebobby1

Well-Known Member

Full Member

• Apr 14, 2024

• #6

sierrafery said:

Be more specific if you want proper help... what pressure and which is the exact fault code?... post these informations beside the engine type of your vehicle which is compulsory unless you want us to guess if it's diesel or petrol cos it's a huge difference when it comes to engine management or fuelling

Click to expand...

Only 1 post, no please or thanks