ION-related IGN Comments & Coil Quest

[Shannen Durphey]

T Hergen wrote:
> 
> Shannen,
> 
> I apologize for replying so late (I was out of town)...  Regarding the
> remote mounted coil in my GM vortec 4.3L V6 S10, it's a '92.  I had a
> chance to check the GM manual on the motor, and a coil diagnostics chart
> indicates there should be no resistance between any coil terminal and the
> frame (I think that answers my question -- please let me know if you think
> this is incorrect).  A few measurements with an ohm meter showed it looked
> like the common three terminal coils.
> 
Yes, your coil is tied together at the BAT terminal.  My
notes and manual from one of the GM training classes said
that the external coil was the same as internal, but as
Garfield has found out, that's untrue.  It's surprising that
I've never been in a position where I had to check that
before...  

Of course, GM service literature is never incorrect. ; )

Shannen