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1999 Alero how do i test ignition coil pack
First in all test (Fiat)
First in all test (fiat)
ignition module on what?
Coil packs can be checked for resistance with an ohm meter. If the pack is breaking down due to load or heat problems then the only way to check is to change it out. If the Windstar is a two pack model then you can swap the packs to see if the problem follows the cylinders that the possibly bad coil pack are now controlling.
get a volt meter. turn it on. put one end on the +. the other end on the -. if you get a number greater than 12 with the car running then your golden.
I found the easiest way to do this is read the codes, if it is reading a misfire on one cylinder, then swap that coil pack with one of the other cylinders coil packs, then you will have to clear the codes and drive it, then see if it throws a new code on a different cylinder.
the 4.6L and 5.4L Ford V-8's and 6.8L V-10's have one coil pack for each cylinder or spark plug. You need to remove the 7mm hex head bolt and unplug the coil pack from the wiring harness, then remove the coil pack unit from the spark plug hole and do an ohm test that is the only way to test these.
After pack 1 has failed.
pluginyerarse
The easiest way to test ignition coils on a 1992 Mustang 2.3 is to use an ohmmeter on the leads going into the coils.
Check that battery has power. Check that coil pack has power and is grounded. Ground out one spark plug and see if there is any spark. If there is no spark, then it is either a fuse or your coil pack is bad. Rule out that the coil pack is good and that your spark plug wires are bad. Test them all individually. Don't get shocked by the 20K volts from the ignition, it really hurts.