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sd33 wont keep fuel up to the injectors -- help please?

Posted: Thu Mar 15, 2007 6:37 pm
by Brendan-s
hey all,

I have an MQ with an SD33 that as the title says wont keep fuel up to the injectors.

could you please help me with some ways I can diagnose this.

i have replaced the primary screw-on fuel filter, and have cracked an injector pump bleed nut and tried cranking -- no diesel comes out at all, so its not getting anything.

could you please tell me where the fuel filters are that I should check? also can someone please describe what the fuel cut of switch mentioned in the sd33t fuel problems thread looks like.

please help, i need this thing running for TTC :)

cheers Brendan

Posted: Thu Mar 15, 2007 8:34 pm
by badger
its on the pump and has a few wires running into it
sorry i cant be of more help but its been a while since i played mq's

you can manually turn it on n off too

Posted: Thu Mar 15, 2007 8:38 pm
by Brendan-s
thanks mate I appreciate the help. ill have a good squiz at my FSM tomorrow (its at work). in the meantime any more suggestions from anyone?

Posted: Thu Mar 15, 2007 10:19 pm
by Wish I had coils
fuel cut off is on the drivers side of the car about middle of the motor,
It has a little motor on it which seizes up quite often on these motors (pain in the ass) This motor has a rod running off it up to the fuel cut off, disconnect this rod and pushing it forward or backwards will turn the motor on or off. Hope this helps a little

Posted: Fri Mar 16, 2007 7:55 am
by Brendan-s
Is this the cut of switch talked about?

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