hello

can any body help me find a wiring diagram for the glow plugs as my 60 amp slow blow fuse keeps blowing

glow plugs seem to be ok the glow plug rail is not grounding out so i am a bit stumped relay seems ok

its a strange one lol

thanks a lot

john

What model and year is the car?

sorry forgot

its a 2006 06 reg 2.0 tdci 115

Have you measured the resistance of each plug?

Here you go then.

Hi

Thanks very much for the diagram it's very good but I have Haynes

I needed ford diagram as Haynes is a typical and not the same

But thanks for that

I have tested resistance on plugs with multimeter

Continuity test and it comes up 0.6 ohms that's each plug out the engine

I have put them back in and put rail on but took the poss wire off rail and put fuse back in

And it has not blown so it is the rail I have used a wire with 20 amp fuse and put from poss

Of battery and put it to the rail and it pops the fuse

So some where its going to ground

How can I test each plug as they all glow nice when each one is put to the battery

Thanks a lot for your help

John

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Im sure Haynes quotes something about each plug drawing about 15A? Ive still got my old set from the 2.2 that i could measure to confirm this for you - both engines probably use the same plug anyway.

Hi

Thanks for your replys it all sound true and good but my car did work and Haynes engine fuse box F8 and ford have it as a 60 amp slow blow so it is right

I have taken them all out and rail off

Tested each plug on battery with 20 amp fuse and all work no problem

But am I right in saying if they are all in and I put my 20 amp wire on the rail the fuse should not blow but the plugs won't work because they don't have enoght amps to work

I have brought a new glow plug to test it's ohms and that is 0.8

So does any one know how to test these plugs

And where are all the engine earth straps so I can check them

Thanks a lot

John

0.8 ohms @12V would theoretically work out to 15A a plug - which is correct (given the 60A fuse)

with all 4 plugs connected to the rail, they will blow a 20A fuse - the fuse is simply an over current device.

it does sound like 4 new plugs will solve your problems though

\

Hi all

As a update I changed my plugs and all is working again now

Thanks a lot for all your help

John

Hi all

As a update I changed my plugs and all is working again now

Thanks a lot for all your help

John

Good news then, thanks for the update John

Hi all i am new here i have a 1.8 tdci transit connect with a glow plug problem , checks i have done ,relay good new glow plugs good but don t have power to glow plug post ,striped out relay get 5v on left spade ,bottom spade 12v top spade power out to glow plugs wiring ok , right hand spade is ground but getting 8v on this that should have no power on i think any one can shed any light on this matter please . oh by the way i am grasstrack 54

How do you know that the relay is good?

As there is a lot of current involved , then any  poor connection will cause overheating and corrosion resulting in even poorer connection.

When are you getting 5 volts and 8 volts on the relay? 

Perhaps you need a test lamp, so that you can get some current flow, as just reading open circuit voltages can mislead 

HI thanks for your reply 

5v and 8v is with the ignition on relay out ,tested relay with a battery and its ok ,and tried another one just the same, 

i put my scan tool on for a report on first and it came up with codes

P0383 P20cd P0101 Po2e2 the van starts first turn off the key, if i can get a picture on it i will send it to you if that helps,

its not my van it belongs to a friend its has a history off not running very well but now it is its just these small things that stops 

me from giving it back to him hope this helps.

Robert  

Hi, if you know how to,  clear the errors and see which if any, come back, 'cos you don't know how old those are, seeing as there are no time stamps. 

 

HI 

codes cleared and its the same ones that has came back , do you think its a short to ground then.

Robert