Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing

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Mon 19 Apr 2010 13:20
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - wendy w

The fuse keeps blowing on my fuel pump, what should be replaced?

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Mon 19 Apr 2010 14:00
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - Peter.N.

Probably the fuel pump unfortunatly - are you replacing it with the correct fuse? You could try a slightly larger one but if that goes - fuel pump.

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Mon 19 Apr 2010 14:14
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - wendy w

Fuel pump fuse keeps blowing.

Thanks, several fuses have blown, but garage could not find a problem with the pump, so will take it back for another look. Thanks for your help.

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Mon 19 Apr 2010 20:36
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - mfarrow

What's the engine size? Is it DOHC (16v) or not?

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Wed 21 Apr 2010 03:43
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - 1litregolfeater

Must have a loose connection if the pump's ok.

I doubt diesels have one of those devices supposed to cut off the fuel when the car goes upside down, whatever they're called. They go bad.

Check the relay.

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Sat 24 Apr 2010 14:54
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - Dynamic Dave

If you've got a multimeter then substitute this for the fuse and measure how much current the fuel pump is drawing.

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Sat 24 Apr 2010 21:17
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - topbloke

multimeter set on amp's two probes set either side of where the fuse should be,regards TB

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Mon 26 Apr 2010 19:01
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - wendy w

Thanks for all the suggestions.

The RAC guy measured the current drawn by the fuel pump, but this was only 6 Amps which is well within the 15 Amp fuse rating. The problem only seems to show itself after the engine warms up.

The car is still under warranty so I took it back to garage again after the third fuse had blown.

They have now replaced the relay so I am hoping this will do the trick!

I will report back if this sorts out the problem, but not holding my breath yet!

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Mon 26 Apr 2010 19:14
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - elekie&a/c doctor

Which fuse blows?Can you identify what number it is on the fuse map?Unlikely to be the relay.There is probably more than one consumer on this circuit.hth

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Tue 27 Apr 2010 18:45
Vauxhall Astra G Diesel - Fuel pump fuse keeps blowing - wendy w

The fuse blown was fuse 24, which the handbook says only relates to the fuel pump, which I suppose is triggered by the relay. Everything is still fine at the moment, but as I said I will post an update if this does not cure the problem.

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