2003 Rover 25 - Fuel pump needs to prime twice to start

25 1.4 Problem
The Problem
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Jim18
Fixes: 3
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Fuel pump needs to prime twice to start
Apr 13, 2017 (2 years ago)
For whatever reason I need to prime my fuel pump twice before I can start it, I've done a service recently and the fuel pump has been changed, what could cause this because once it fires up on a morning I can leave it for hours before I need to re prime it...

Car: Rover 25
Variant: 1.4
Year: 2003
Category: Running Rough, Starting & Power Loss
More: Rover 25 Problems
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whittingehame
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Apr 13, 2017 (2 years ago)
How do you prime the fuel pump ??
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1/4drive
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Apr 13, 2017 (2 years ago)
Diesel yeah?
If so it's got a leak in the fuel intake system,
first lookie would be at the fuel filter bowl seals.
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whittingehame
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Apr 13, 2017 (2 years ago)
Thought they were all petrol .
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Jim18
Fixes: 3
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Apr 13, 2017 (2 years ago)
It's petrol, and I prime it by turning the key to II and let it prime for the 2 seconds that it takes, if I then try to start it will turn over but never start, I then have to turn the key to 0 and wait 30 seconds for the fuel relay that's under the steering wheel to click off before I can prime it again and it always then just bursts into life....
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whittingehame
Fixes: 12,189
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Apr 13, 2017 (2 years ago)
Thought the fuel pump relay was in the engine fuse box .
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Jim18
Fixes: 3
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Apr 13, 2017 (2 years ago)
Ok, well something clicks under the steering wheel after 30 seconds and if I don't let it happen the fuel pump won't prime again, maybe it's not the relay but it does allow the pump to reprime...

Any ideas why this happens?
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whittingehame
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1/4drive
Fixes: 1,862
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Apr 14, 2017 (2 years ago)
A fuel pressure test would help,
the pressure is meant to hold for a good while after engine off.
many systems have a non return valve in the circuit to hold pressure.
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whittingehame
Fixes: 12,189
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Apr 14, 2017 (2 years ago)
Replace fuel filter if not been changed for a while .
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Jim18
Fixes: 3
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Apr 14, 2017 (2 years ago)
I've done a basic service on it last weekend, changed oil, fuel & air filtres, changed oil, spark plugs, ht leads and coolant too...
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whittingehame
Fixes: 12,189
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Apr 14, 2017 (2 years ago)
Scan it .
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