ignition coil keeps blowing

[mightyeel]

HELP!!!!!!!!!!!!!!!!
HI FROM CANBERRA AUST
can any body help me with my 2001 transit i recently purchased.
it keeps blowing the same ignition coil!!!!!
any of u transit heads come across this?
i cany find any body in oz who can help.
cheers
mightyeel

[MrMPuk]

Welcome.

[motorwise]

does it kill the coil straight away or does it take a while?

[mightyeel]

hi motorwise,thanks for the reply
the first lasted 2 weeks the second 3 months the third 2 DAYS!!!

[Nighthawk]

Is this an LPG equipped vehicle?

Have you had the plugs checked?

The coils fail because of the excessive current being generated.

[motorwise]

as said check the plugs first - a wide gap will over drive the coil as will a weak mixture - is it the same cylinder every time?

[mightyeel]

hi motorwise
yes its always the same cylinder.
its running on unleaded
cheers mightyeel

[motorwise]

hi motorwise
yes its always the same cylinder.
its running on unleaded
cheers mightyeel

is the plug OK?

[mightyeel]

not only is it the same coil its also the same cylinder.
just before it blows the engine runs better
(more power)
cheers mightyeel

[MrMPuk]

But have you checked the plug?

[mightyeel]

they claim to have fitted genuine plugs as recommended by a ford mechanic in oz

[mightyeel]

thanks MrMPuk,Nighthawk,Motorwise!
ill get them to change the plugs AGAIN
great forum!
ill let you guys know how i get on
THANKYOU
mightyeel

[motorwise]

check the colour of the plugs as well - in particular uif that plug is a different colour - a weak mixture will cause the firing voltage to rise so you need to find out if that cylinder is running weaker than the other three

[Nighthawk]

If a coil has gone down, it'll affect 2 cylinders, so be sure to check both the plugs fed from the bad coil.

I'd check the lead too, if it wasn't replaced first time round change it now.

[motorwise]

If a coil has gone down, it'll affect 2 cylinders, so be sure to check both the plugs fed from the bad coil.

I'd check the lead too, if it wasn't replaced first time round change it now.

one half of a double ended coil can go down on it's own (happens to fiats a lot) - whats the set up on these then - is it like the galaxy?

if it is - is it the plug the coil sits on or the one attached to the lead thats going down - as nighthawk said if it's the lead side then the lead could be causing it

another thing to check (will need checking with a 'scope though) is the trigger signal to the double ended coil thats failing

I don't see any petrol transits all the firms I deal with have diesels