Thread: Starting issue

Originally Posted by getLuke

Also, what is 'WP' when sierraferry states "..if it gets 12V across the WP and black wires.."?

Cheers mate!

WP? is Willy Pete!

Originally Posted by sierrafery

You must get to the pump with a multimeter and make sure that it gets power when you turn ignition on and dont hear it to not be an electrical circuit issue or sticking relay, if it gets 12V across the WP and black wires but doesnt run you know for sure that it's faulty but if no power you'll replace it in vain

Tested the pump.

Murphys law.. its not, not working, so I can only confirm it is getting 12v to it when it is operational (I can hear pump running and then pull plug, test and can see 12v).

I'll keep checking as often as I can and when it does not prime/purge I'll whack the multimeter on.

I did see somewhere the sealing ring holding the pump housing in needs to be replaced if taken off? I'll replace the seal of course..

Originally Posted by PhilipA

4 out of 5 aint bad. to paraphrase the meatloaf song.

I am somewhat sure that they heat on shutdown also, as there is a big current draw after switch off.

But my light has never come on, except for the usual start up check. Still there is a big draw when ignition is turned on for a few seconds which seem more than just fuel pump as my battery voltage goes from 12.5-7 down to 11.8 or thereabouts for a few seconds. Hard to tell once engine starts as alternator is putting out 14.5.
Regards PhilipA

You are correct. They do glow afterwards and I am pretty sure it has something to do with taking readings then using this to help start the engine. Hence why I thought this could be possibly the case in question here! Other reasons are for helping a cold start and even reducing emissions from what I understand.

Originally Posted by onebob

Yup, the sure is a light for the glow plugs…

Thanks! Good to know

Originally Posted by Bohica

There is a light, top right cluster, an orange coil. I have just has a look, the light was on for less than a second, I didn't start the car Ignition off and on again, and no light the second time.

Thanks mate, I just checked and seen it pop up on instrument panel lamp check

Originally Posted by getLuke

Tested the pump.

Murphys law.. its not, not working, so I can only confirm it is getting 12v to it when it is operational (I can hear pump running and then pull plug, test and can see 12v).

I'll keep checking as often as I can and when it does not prime/purge I'll whack the multimeter on.

I did see somewhere the sealing ring holding the pump housing in needs to be replaced if taken off? I'll replace the seal of course..

Try to do somehow to measure with the plug connected to the pump cos i've seen cases when there was 12V in the plug disconnected but dropped under the pump's load due to a bad contact on the circuit/earth...eventually insert neddles into those pins from behind and measure on those.

So I left it overnight and tested the plug on first start up.

No voltage from first approx 4 ignition cycles, then we got 12v.

So now I am going to go back and get a new relay and try that as I do not think it is the pump.

Any other ideas?

Ignition switch.

Check the voltage at the switching terminal on the relay as you cycle the ignition switch.