4k died while driving....no spark

[Tony Hoffman]

The first thing to check for is 12V with the key on at the coil. Then,
while cranking, you should have a switching signal (12V, then ground,
back and dforth) at the "1" terminal of the coil. If no switching
(which is what I suspect you wll find) you will have to dig deeper.
The next place I'd go is to the hall sender. The outside wires are 12V
and ground, and the center is the ~4.5 V reference for the ign control
unit. That is, if it's like the others I've worked on, and my memory
is correct. To check it, pull it, then turn by hand while the ign
switch is on. It should switch from 4.5V to none as you slowly turn
the gear of the distributor. The other thing to check of course is the
grounds on the engine from the body and harness on the intake
manifold.

HTH, and let us know what you find,
Tony

On Fri, Oct 16, 2009 at 7:23 PM, donald grady <audilvr at hotmail.com> wrote:
>
> my 4k fwd auto this morning felt like it was having shifting issues shuddering and bucking before shifting. then this afternoon the car died while driving in the rain. a quick check while waiting for the wrecker showed no spark at the coil wire. due to a rain/snow mix all day, i haven't had a chance to dig deeper. any idea's?
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