Discovery 4 2010 low rail pressure

Discovery42024 · Jan 3, 2024

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 · Jan 3, 2024

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.

Alsrange · Apr 14, 2024

I have one cost £186

lynall · Apr 14, 2024

Alsrange said:
I have one cost £186

I have one cost 185 gbp.

sierrafery · Apr 14, 2024

Discovery42024 said:
with constant cranking of engine got it on computer and its reading low rail pressure

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

Firebobby1 · Apr 14, 2024

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

Only 1 post, no please or thanks

Discovery 4 2010 low rail pressure

Discovery42024

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Graculus

Well-Known Member

Alsrange

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lynall

Well-Known Member

sierrafery

Well-Known Member

Firebobby1

Well-Known Member

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