Fuel pump ?

[paulspray]

Went for drive, as it was so nice today, went over a bump, all of a sudden no power !

Now when I key-on, there is no buzz from the fuel pump !

Any advice ? Where to start looking ?

Where is the fuel pump fuse ?

Where is the fuel pump ?

How big a job to swop it ?

Any other advice, much appreciated

Thanks.

[TuxMan]

Hi Paul ,2 banks of relays on the bulkhead in front of the aircon unit , one of the relays is fuel pump , give them a good wiggle , sounds like it has come loose .

[elenitro]

Those relays tend to be a pain. Here's a pic to help. Taking them out and twisting the connectors slightly with a long nose pliers can help (thanks Steve!)



Leon

[ajf]

Some cars are fitted with an impact switch that cuts the earth supply to fuel pump will also be in the same area

[paulspray]

How do I get to the fuel pump ?

[2.5bluenob]

paulspray said:

How do I get to the fuel pump ?

Remove the near side rear wheel arch cover(next to the fuel tank) and you will see the pump and filter.

[paulspray]

Cheers looks like I'll be giving it a go !

[paulspray]

More Help please.
When I key-on I get voltage at the pump for about 2 seconds.
I think that sounds about right (when measured across both pins of the pump.)
(normally a 2 second "buzz" at key-on.)

But I only get 6-7 volts ( and no buzz )
Also 6 - 7 Volts when cranking

So now I'm not sure if the pump IS dead ( and measured voltage is normal )
or
pump is ok and the voltage is too low ?

Any thoughts ?

cheers

[ajf]

Have you tried a tempory live to the pump had a similar problem had bad corrosion on some of the relays

Adrian

[paulspray]

Cheers,
Yep, I think that will be the next thing, stick a garenteed 12V on the pump and see what happens.
I need to get the wheel off so I can see what I'm doing properly, and for that I need a decent scissor jack, my day to day cars have naff cantilever jacks.

Tomorrow's Job

[2.5bluenob]

paulspray said:

Cheers,
and for that I need a decent scissorTrolley jack,

That will make life a lot easier

[paulspray]

So, it is the pump, it's jammed, why is it jammed ? a flake of Alu jammed in the pumping element, why is it there because the fuel filter has partly collapsed !

The element that is in there is a nylon gauze with nylon "frame" when I google the sytec replacement filter I get images of a a paper or metal element. Anyone else had theirs in bits recently ?

With either type of filter there doesn't appear to be any seal be seal between the clean and dirty side, I short I don't like the design, anyone use anything different ?

Thanks

[ajf]

I went with the metal one as the paper ones are known to have problems

Cheers
Adrian

[andygtt]

My original one was full of metal flakes from the petrol tank, if you upgrade the pump then it's a bad filter to have in original position so you really need two, a course one pre pump and the original filter post pump.

[paulspray]

Andy, why is that ?
Because the original filter is too restrictive on the suction side ?

Anyway I'm not upgrading power for now, so I won't be flowing more fuel.

[andygtt]

The 044s hate sucking fuel unlike the stock pump, and you end up with a buzzy complaining pump with a good possibility it will loose performance. So whilst the stock filter can easily flow the fuel the 044 won't like pulling fuel through it. I don't have a filter between my swirl pot and 044s , it's actually just before the fuel rail instead and I have course sock filters in the tank.

Whatever you do don't not have a filter at all before the pump as my original was FULL of alloy shavings hence why the filter was so bad..., even washing it out 3 times didn't get rid of it all.

[anonymous-user]

andygtt said:

Whatever you do don't not have a filter at all before the pump

ARGH! Too many negatives!

;-)

[paulspray]

Yeah, cheers Andy, I think the right solution for me is the 8 micron paper element on the suction side with the standard pump, the local parts shop says they can get me a pump for £100, which doesn't sound too bad ? ?

[andygtt]

paulspray said:

Yeah, cheers Andy, I think the right solution for me is the 8 micron paper element on the suction side with the standard pump, the local parts shop says they can get me a pump for £100, which doesn't sound too bad ? ?

Like a lot of people I have a stock pump on the shelf that came off my car, your welcome to have that for free... might even have a spare paper filter on the shelf as well (but the paper filter is under £10 anyhow)

tbh on stock power the stock pump is more than good enough, just do the wiring upgrade and check the fuel line between the tank and the filter as both a weak points and could have caused your failure.

[Gadgeroonie]

you could run the stock pump feeding a 044 - commonly done this way in motorsport