my 944 broke down today help!!!!

ryan 944 · **Posted:** Sat Oct 24, 2009 8:38 pm

hi all

my 944 broke down today was driving along when it just cut out and would not restart, had to call my dad for a quick tow as i was only 200 yards from were i live just on the wrong side of the road lol.
had a quick look and th fuel pump fuse has blown, tryed replacing it but it blow as soon as i turned the ign' on, so the is a full short, mighty be the fuel pump has burned out? but has anyone got any ideas or had this happen before i start pulling the car to bits thanks

ryan

J.J. · **Posted:** Sat Oct 24, 2009 9:10 pm

Well before you pull the pump out. It's arkward to get at up the side of the tank. Try puting 12v direct to the pump & see if it runs. If you get sparks then the pumps favourite. Other possibility would be DME relay. Though I don't know if that could cause the fuse to go. It's easy to plug another in to check though. Got a new pump for mine from GSF for £50.

sulzeruk · **Posted:** Sun Oct 25, 2009 7:51 am

My money would be on a burnt or shorted out pump!

tr7v8 · **Posted:** Sun Oct 25, 2009 9:03 am

sulzeruk wrote:

My money would be on a burnt or shorted out pump!

I'd agree not to difficult to get at assuming the strap isn't rusted to bits!

ben944 · **Posted:** Sun Oct 25, 2009 10:43 am

Hi.

I'd try the DME relay first. If its faulty it could be causing the fuse to blow. Failing that, fuel pump as already mentioned.

Ben :bounce:

ryan 944 · **Posted:** Sun Oct 25, 2009 1:17 pm

hi all

update have changed the pump and dme relay and is still blowing fuses

thinking caps on, look like a wiring fault, i hate looking for them, well back to it

Brett928S2 · **Posted:** Sun Oct 25, 2009 2:14 pm

ryan 944 wrote:

hi all

update have changed the pump and dme relay and is still blowing fuses

thinking caps on, look like a wiring fault, i hate looking for them, well back to it

Hi

Here is what I would do....

I would disconnect power to the pump.....then feed independent power to it, I have a special Snap On tool called a Power probe to do this, but a length of wire from the battery WITH A FUSE HOLDER AND FUSE in it would do....

If the car then runs, you KNOW its the power system TO the pump thats faulty and you can trace it back with your piece of wire, one step at a time....

All the best Brett

DaveM · **Posted:** Sun Oct 25, 2009 2:33 pm

I can see an afternoon with a multimeter in your future.

ryan 944 · **Posted:** Sun Oct 25, 2009 6:33 pm

FIX IT YEAH!!!!!!!!

Took all the fuse box out the check the wiring wire had earthed and got hot taking some loom with it. replaced the wires that had been damaged. up and run again.

Thanks for you ideas guys

Ryan

DaveM · **Posted:** Sun Oct 25, 2009 6:41 pm

Nicely Done! :thumbright:

tr7v8 · **Posted:** Sun Oct 25, 2009 6:50 pm

ryan 944 wrote:

FIX IT YEAH!!!!!!!!

Took all the fuse box out the check the wiring wire had earthed and got hot taking some loom with it. replaced the wires that had been damaged. up and run again.

Thanks for you ideas guys

Ryan

Well done, wiring faults like this can be a real PITA to find. And that comes from someone who trained on aircraft doing this :twisted:

J.J. · **Posted:** Sun Oct 25, 2009 8:52 pm

Glad your up & running again. Cheaper than a new pump too!

ben944 · **Posted:** Sun Oct 25, 2009 9:10 pm

Nice one!

Ben

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