Help my diesel saxo keeps cutting out randomly

[Mikeyvans]

Hi I own a 1.5d saxo and she takes ages to start and cuts out randonly the revs just drop and stalls then takes forever to start again.

[stevo67]

1st port of call change the fuel filter mate.

[Mikeyvans]

Cheers buddy ill give it a go tomorrow is there a particular one ? I know they can be touchy if theglow plugs aint exact

[Mikeyvans]

Didnt work guys any other ideas ?

[Mikeyvans]

Theres definately air in the fuel

[Manu]

You don't have a habit of driving with only a gallon of petrol left by any chance?

[Mikeyvans]

Yeah ive run it,pretty low lately why

[Manu]

I suspect you might be sucking all the crap that's at the bottom of the tank. On top of that if you park uphill your engine may not prime properly, then suck some muck.

[Mikeyvans]

Uh oh is there a fix ?

[MartinObviously]

I suspect you might be sucking all the crap that's at the bottom of the tank. On top of that if you park uphill your engine may not prime properly, then suck some muck.

No electric pump in the 1.5D. The pick up is at the bottom of all fuel tanks as well, so fuel level does not determine how much shite goes up the line :homme:


I'm betting you've got air in your fuel line. The line between the primer and the fuel filter housing often cracks.

There is also a white "cross" shaped relief valve on the back of the fuel filter housing, the seal can fail and allow air in that way as well. Just fill it with silicone :P

What to do, is squeeze the primer bulb REALLY hard, and see where the diesel is coming from. Air leaks aren't always obvious :y:


If you've ever let the car run out of fuel, you will need to bleed the fuel system as you may have an air lock. running out of fuel can also damage the pum p as it's lubricated by diesel.

[Mikeyvans]

Once its warm it runs fine is that a factor

[MartinObviously]

Once its warm it runs fine is that a factor

Not really, the engine needs less fuel when its warm, so an air leak can go un-noticed.

I had an air leak for months, hard cold starting but fine warm starting.

I suggest you actually go out and actively look for the source of the problem. it's got clear lines on it for a reason.

there should be NO bubbles when the car is running between the fuel filter and the pump.

[Mikeyvans]

Cheers dude does the fuel run from the filter to the pump ?

[MartinObviously]

Cheers dude does the fuel run from the filter to the pump ?

Of course :)

[mechsman]

Almost certainly air ingress into the fuel line. My bet is on the pressure relief valve on the back of the filter housing, or the o-ring seal on the top of the filter itself.

[Mikeyvans]

I skillfuly shoved blu tac up the hole by the filter now everything is fine

[MartinObviously]

I skillfuly shoved blu tac up the hole by the filter now everything is fine

The hole with the plastic white cross thing?

load it with silicone for a more permanent fix ;) blutac will crack and dry up. I've tried that :P

[mechsman]

^ What he said. Diesel is a f*cker for drying stuff out. Could do the proper thing and get a new O-ring but that requires effort. Silicone for a cheap fix. My 1.5D ran for 4 years like that.

[MartinObviously]

^ What he said. Diesel is a f*cker for drying stuff out. Could do the proper thing and get a new O-ring but that requires effort. Silicone for a cheap fix. My 1.5D ran for 4 years like that.

No it's not, diesel is a really good lubricant. it stops the pump drying up, as a result the pump needs no oil feed :)

o ring cracks with heat, age and the fact it hardly ever moves. so no diesel can lubricate it. ;)