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Fuel Blockage....Injector Removal

Posted: Mon Jan 11, 2010 7:55 pm
by jxp
Well though I take the opportunity to get the cover off the car, warm her up and try got get it into the garage (strange angles so will prob be a 5 point turn to get it in....). Anyway starts first time, great. Left her running for a bit then started to struggle....ahhh low fuel. So off to garage for a can of juice. Put it in, tried to start, no chance..... So looks like I dragged some shit through.

Guess me n me mate be busy trying to sort this week.....ggrrrrr. Cant help but think what a tit. Any tips apart from rocking the car like mad n changing the filter. Anyone know the part number for the one under the driver seat????

So car still in back drive, minus a cover, no where near the garage I wated ages for and wont start...happy days.... :crying:

Re: Fule Blockage....

Posted: Mon Jan 11, 2010 8:00 pm
by GTXTRA
have a little wander 'round this section.

Re: Fuel Blockage....

Posted: Mon Jan 11, 2010 11:09 pm
by jxp
Found some good info, but does the fuel lift pump on a DX engine, injection, have a filter??

Re: Fuel Blockage....

Posted: Mon Jan 11, 2010 11:10 pm
by GTXTRA
jxp wrote:Found some good info, but does the fuel lift pump on a DX engine, injection, have a filter??
more of a gauze to stop the tiny bits from being sucked up.

Re: Fuel Blockage....

Posted: Mon Jan 11, 2010 11:15 pm
by jxp
So that will be part of the lift pump then rather than a seperate filter.....????

Re: Fuel Blockage....

Posted: Mon Jan 11, 2010 11:25 pm
by GTXTRA
jxp wrote:So that will be part of the lift pump then rather than a seperate filter.....????

vagcat.com lists this as a strainer 533906098C

go to vagcat.com, register for free and search scircco/year/electrical systems

SEEMS to be still available but a dealer will confirm.

hope that helps?

if any of the tecchies have alternatives feel free to add?

Re: Fuel Blockage....

Posted: Mon Jan 11, 2010 11:41 pm
by ianaudia4
I would replace the fuel filter under the bonnet as well, they only cost £14 from VW so at leat you know it will fit!

Re: Fuel Blockage....

Posted: Mon Jan 11, 2010 11:42 pm
by jxp
Thanks for the info mate. Hopefully filter/strainer changes will get me going again.......see what happens.

Re: Fuel Blockage....

Posted: Mon Jan 11, 2010 11:45 pm
by jxp
ianaudia4 wrote:I would replace the fuel filter under the bonnet as well, they only cost £14 from VW so at leat you know it will fit!
Assume thats the one next to the metering unit, silver bosch one.... Hopefully pick one up tomorrow

Re: Fuel Blockage....

Posted: Tue Jan 12, 2010 7:20 pm
by ianaudia4
Yes that's the one, the one from VW are black and made by Mann.

Re: Fuel Blockage....

Posted: Fri Jan 15, 2010 2:03 am
by whiteshark
Take your fuel floater / sender out of the tank, it is located under the rear seat. At the bottom of this unit is a small rubber filter with tiny holes. If there is any dirt in your tank it will cut the fuel. Cut the small rubber filter off with a knife. Make sure a new paper fuel filter is installed under the bonnet before you proceed, just before the fuel diffuser. This will allow suction fron the tank, you can see if fuels getting drawn from the tank, plus any crap in the tank will be sucked up and will rest in the paper filler.These are pretty cheap from GSF. If that does not work, start going down the route, fuel diffuser, pump ect. I'm not a mechanic but it worked for me after several months of engine running fine then stalling for no reason. Hoper this helps, regards.

Re: Fuel Blockage....

Posted: Fri Jan 15, 2010 8:31 pm
by jxp
Right, I've had the fuel lift pump out of the tank and the filter/strainer is clean. Removed the main filter in engine bay and clean fuel one end, dirty stinky stuff at other. Blew through the filter almost nothing getting through, replaced that. Fuel is getting to this filter so I can now expect it to be blocked injectors.

So the car is stuck another week till my mate can come round and try to sort it......Oh an lost the keys to the garage I have just rented, only had keys since Sunday. What a big clown feet week....

Re: Fuel Blockage....Injector Removal..

Posted: Fri Jan 15, 2010 11:17 pm
by jxp
Going to try and get my injectors out tomorrow to see if any blocked.

As I've not done this before any tips?? Look around a seems good advice to WD40 first and let it soak before tying to pull. Should I try got get new seals before I take the injectors out so can replace them??
Should I try to get them out of the hoses to clean??

Any advise appreciated before I manage to do more damage..........

Cheers

Re: Fuel Blockage....Injector Removal

Posted: Sat Jan 16, 2010 10:48 am
by Brunty
Not a bad idea to soak the seals in oil before attempting removal as they can sometimes be quite stuck. You'd want new seals as well for re-assembly.

You do know that you can't just "clean" the injectors though? You'll need an ultra sonic bath for that. You can test them in a jar though to see what their spray pattern is like.

The fuel filter is a charcoal one I think, so you shouldn't be able to blow through it anyway, you said that clean fuel was flowing from one end (to the engine I presume) so just replace it anyway. If the fuel pickup in the tank was clean then I would ignore possible dirt in the fuel and concentrate on why the engine isn't running. Check the fuel pumps, start with the fuse and relay. Check for 12v at the pumps. You could take the return hose off the metering head to check for fuel flow. Take it from there...

Re: Fuel Blockage....Injector Removal

Posted: Sat Jan 16, 2010 11:57 am
by jxp
Thanks for the info mate. Think I will leave the injectors for now then, and poss wait till my mate with more knowledge can come over. I replaced the fuel pump relay a few months back when I got the car, and I can hear it priming when ignition is switched on. So frustratin as it was running fine till i took my eye of it on Monday night.......Well sick, just want it running now!!!! ha ha