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does the coil pack make it run better
1999 Alero how do i test ignition coil pack
Take off the modual and coil pack take it to autozone they will test it free.
HOW DO YOU TEST THE COIL PACK ON A 1995 MERCURY MYSTIQUE DOHC 6 CYL.
If you have an Ohm meter you will want to measure the resistance (ohms) of the Primary and Secondary sides of the coil pack and compare your readings to the Specifications for the vehicle.
May have failed coil pack, there are 3 coil packs and 3 leads, 1 coil pack fire 2 cylinders in wasted spark. Isolate the failing cylinder and test the input voltage and signal to coil using a led test light or noid light. If signal is present- replace the coil pack If no signal possible crank/cam sensor issue or ecu
Symptoms of a bad coil pack can vary. Most common is a Misfire which will turn on the check engine light. the most common way to test a coil pack is with a volt meter set to OHMS
AnswerWhat is the computer saying? Have you run a diagnostic test?Well if it is saying cylinder misfire, then its two things, needs new plugs and wires, and coil pack, so test to see if ur coil packs are working. So if the test is saying for example cylinder 5 misfire, check the coil pack for cylinder 5. You know how to test the coil packs, Take off the plug wire of the coil pack one at a time, so just take of cylinder 5 wire from the coil pack and start the car if the pack is good you should be able to see the spark of the coil pack. if nothing its bad...thats a 30.00$ fix.Hope this helps..This happen to mine.
I've run into the same problem before. I've been told many of times to just have the car turned on and get a spray water bottle and spray over the coil pack, if you get sparks, you've got a bad coil pack. Either way if you coil pack is faulty, do what I did the smart and cheap way. Go to any hardware store, buy "JB Weld" or some sort of that kind, take out the coil pack, and just fill in whatever cracks you see around the coil pack plug entrance wires.
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.
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.
It's probably bad wiring somewhere and you need to test the coil connectors for power and try to trace the flaky wiring. It's a pain I know.