Fuel cut off valve on saab 9.3s convertable

Hi all Can anyone tell me where to find the Fuel cut off valve on my 1999 SAAB

9-3s, convertable. I am told by 'someone who knows', that this has tripped and that's why it wont start.

Thanks for the direction

Jeffro

Reply to
jeffro
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I don't think that's how a fuel cutoff valve works. Historically, they kick in at over-rev or over-pressure limits to protect the engine. Once the RPM drops below 6K or the pressure drops below whatever, it opens back up.

Do you have a local Saab Specialist garage?

Reply to
Dave Hinz

If you bounce the car off a kerb it's possible you can trigger the fuel shut off..?

Reply to
DervMan

Reply to
jeffro

Hmm. I can't see it detailed in my 2000 9-3 manual. There's usually a switch somewhere.

And Google has turned up empty handed... :-(

Reply to
DervMan

WIS seems to say nothing about it as well. Plenty of mention of fuel cuts for over-revving, zero throttle, sensor failures etc. but nothing about an impact sensor.

Cheers,

Colin.

Reply to
Colin Stamp

It's possible it doesn't have one... which is unheard of. Fuel cut offs are designed to, well, heh, stop fuel squirting all over nice how wreckage in the event of an accident...

Reply to
DervMan

I guess they must be relying on the ECU shutting down the pump when the engine stops and maybe when an airbag is deployed (no mention of that on WIS though).

Now I come to think about it, I don't suppose a dedicated impact switch would be much better than that anyway.

Cheers,

Colin.

Reply to
Colin Stamp

Reply to
jeffro

I think the tank is under the back seat, and the pump is in that. You might hear it better from outside the car. Make sure the stereo is off so you don't confuse it with the aerial.

If it's not running, then there's a few things it could be besides the wiring and the pump. Check Fuse 2 and fuse 32 on the main fuse board inside the driver's door. Also, it could be the fuel pump relay or the main engine management relay. They're both on the relay board under the dash - the bottom right one, and the next one up. After that, you're into probing for voltage along the circuit.

Cheers,

Colin.

Reply to
Colin Stamp

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