Engine starts ok , but immediately switches itself off….any ideas ?

2001 Ford Mondeo 2.0 TDI
Problem added: Oct 14, 2023 (1 month ago)
Car: Ford Mondeo
Year: 2001
Variant: 2.0 TDI
Problem Categories
Running Rough, Starting & Power Loss
Engine starts but immediately switches it self off, no warning lights , any idea ?


Check if rev counter moves when cranking , if not could be crank sensor / wiring . Check if you can hear fuel pump buzz for a few seconds when switching ignition on . Try spraying easy start into intake and if runs then fuel problem . If so check / change fuel filter
Answered Oct 14, 2023 (1 month ago)
I had/have a similar problem with my 2002 Rover 45, sometimes failing to start with the engine cranking nicely (so no battery problems fortunately).
In my case after waiting a few minutes the engine would start normally.
The only thing I found is that it happened when the tank was (almost) empty, when filled it went away. This doesn’t explain the problem but at least it solves the problem.
Answered Oct 16, 2023 (1 month ago) Edited on Oct 16, 2023 (1 month ago)
^ Above post . Shouldn't make any difference if fuel pump is operating as suggested . By switching it on and off a few times by trying you probably primed the fuel system which should not be required unless weak fuel pump or drawing air
Answered Oct 16, 2023 (1 month ago)
Thanks all, in the engine bay fuse box , need to check fuse f27 ….will comeback with updates once fixed ;)
Answered Oct 16, 2023 (1 month ago)
F27 15 Fuel Pump Relay, Windscreen Heater

Hope that's all it is , but if it fails you dont usually hear fuel pump when switching ignition on
Answered Oct 16, 2023 (1 month ago)

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Fuel Air Filter
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Fuel Pump Relay
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