Coil pack melting?

nathan5346 · Nov 2, 2009

What can cause the coil pack to melt? mines melted euff to cause a misfire on 2 pots, Ive sourced replacements but wondered what possible causes could be.
Its a 4.6 gems btw.

fanatic · Nov 2, 2009

Ignition live shorting directly to earth, any pics?

gavbriggs · Nov 2, 2009

they are v close to heads, which pots? could be constant arcing from poor leads/poorly connected. remember theres only 4 coils, 1 for each pair. redundant spark style!

nathan5346 · Nov 2, 2009

fanatic said:
Ignition live shorting directly to earth, any pics?

No pics yet, Motas down the yard and got me m8 to have a look today he's a mech told me over the phone, would the fault be with the pack itself or anything leading up to it?

gavbriggs · Nov 2, 2009

prolly replace packs and it'll be fine!

nathan5346 · Nov 2, 2009

gavbriggs said:
prolly replace packs and it'll be fine!

Thats what im hoping, Paid £not a lot for the mota and its mint, Needs coil pack and new cats ive ordered new cats for £160 which i thort was good.

fanatic · Nov 2, 2009

Has it melted plug lead side-if so change leads and coil pack has lead(s) defective.

otherwise

primary low voltage side melt if you can not see evidence of short to earth with meter ie terminal to mounting point reading bugger all ohms compared to other packs

Next would be to check the wiring has not shorted across in the loom.

Could be ecu fault, but my money is either failed coil pack or chaffed loom to injector feed(rover 45 favourite)

A wiring diagram to ecu plug pins would be handy.

nathan5346 · Nov 2, 2009

I'll be going down there 2mora to av a look i'll let ya know but most what uv just said has lost me... dont take a lot for that to happen

gavbriggs · Nov 2, 2009

you can tell a brummie anything, you just can tell it much!!!

nathan5346 · Nov 2, 2009

Whos a brummie?

fanatic · Nov 2, 2009

looked at autodata should be 11-12v fed coils, so chances are the lead has gone and toasted the coil.
If you get stuck I have some ecu pin out data I could take a screen shot of.

nathan5346 · Nov 2, 2009

fanatic said:
looked at autodata should be 11-12v fed coils, so chances are the lead has gone and toasted the coil.
If you get stuck I have some ecu pin out data I could take a screen shot of.

Letsee, wot wud i do with it?

fanatic · Nov 2, 2009

I think a coil pack, set of leads and cats and sell it for a profit before it develops p38 gremlins

nathan5346 · Nov 2, 2009

gavbriggs said:
they are v close to heads, which pots? could be constant arcing from poor leads/poorly connected. remember theres only 4 coils, 1 for each pair. redundant spark style!

1 and 5 are misfiring

nathan5346 · Nov 2, 2009

fanatic said:
I think a coil pack, set of leads and cats and sell it for a profit before it develops p38 gremlins

Thats was the idea behind buying it

nathan5346 · Nov 2, 2009

Here it is... and Si... it aint pink lol

fanatic · Nov 2, 2009

22109d1250870905-after-replacing-spark-plugs-dii-firing-order.jpg

1 and 5 are on different coil packs according to this diagram for a 4.6
If it is one and five, then dodgy leads are prime suspect for burnt coils

nathan5346 · Nov 2, 2009

Aint that for the thor?

nathan5346 · Nov 2, 2009

fanatic said:
1 and 5 are on different coil packs according to this diagram for a 4.6
If it is one and five, then dodgy leads are prime suspect for burnt coils

Can ya find a diagram for the gems?

fanatic · Nov 3, 2009

having a moment again yours has the 4 in a row:doh: but rave should have it

coil4 interesting read

Coil pack melting?

Well-Known Member

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Well-Known Member

Well-Known Member

Well-Known Member

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Well-Known Member

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Well-Known Member

Well-Known Member

Well-Known Member

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Well-Known Member

Well-Known Member

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

Similar threads