[JessJames]

Hi everybody,
I have a warning lamp coming on that shows a problem with the glow plugs. I have borrowed a multimeter but I also have a couple of questions.
Do you have to take the plastic connector off and if so how?
Do they pull off because they seemed a bit tight and I didn't want to force them.
Those plastic shields with 6 clips seem to be a right pain to remove, any tips??

MTIA.

Cheers,
Jess

 

[JON156VELOCE]

The glow plugs on the 16 valve jtd are very easy to change.
If you turn the plastic conector on top of the plug it has a slot up it, with the ignition off put a flat screw driver in the slot and lever them up, they wont be too tight. To remove the plugs you need I think an 11mm deep socket.
I dont know what you mean about the plastic shield with 6 clips, I dont remember touching anything like that when I did mine.

 

[JessJames]

Hi Jon,
Thanks for the reply. I did see a small slot right at the bottom of the connector. After poking the meter probe in there, I came to the conclusion that I was touching the outer shell as they were all low resistance! I shall have another go tomorrow.

Cheers,
Jess

 

[AdamHarvey7]

Ive just checked all mine after i got the "preheat glow plugs not available " dash warning.

They sit just behind your fuel rail and are connected by 4 little black caps about 2" long, Give them a firm pull with your fingers and persuation down the bottom with a flathead driver and they come free pretty easily.

Set your multimieter to read ohms, pop the red end on the glow plug and black to the battery negative The readings i got were ..

Plug 1 - No reading
plug 2 - 0.007 ohms
Plug 3 - 0.007 ohms
Plug 4 - 0.007 ohms

Obviously on this occasion plug was was dead as a doornail it gave no reading on the metre, but they will also need changing if you get high resistance over 0.8 ohms, its gonna want changing apparently.

On this occasion i just replaced the defective one, but you should really do them all. I used a bosch part no *YE07 on my 1.9jtdm £11.67 + vat from wilco. Total £14.00 each.

 

[JessJames]

Hi Adam,
Thanks for the reply, I've just come in from changing it this very moment. Sprayed it with WD40 this morning when I got home and came out easily. I bought the NGK YE07 from an e-bay shop approx £12. It was the 2nd one from the left which is the most difficult to reach, but as I said, easy job. The worse thing is trying to get that big plastic engine cover back on.

Cheers,
Jess