No spark from coil pack

3.7 V6, mileage?

most likely the HV wires bad.

then bad coil pack.

did you check spark directly at the coil pack?

i use 2 known good HV wires to do that and 2 good test spark plugs.

both plugs grounded to engine (shell)

that is how you test any wasted spark coil pack. 3 coil pack.

if that fails the FSM shows, unplugging it and check the coil resistances. if wrong the pack is bad,

keep in mind the res. can read ok and coil be bad ,due to internal insulation break down (internal shorts)

if thats ok. the resistance , make sure the wires are not (primary)

to the coil (the low voltage connnector)

if that is ok, its mostly likely a bad coil, (pray not bad PCM)

if tool-less? start with cheap parts , work to expensive. (guessing)





now wasted spark 101.

if one line opens , both spark plugs die. no spark

the wasted spark is wired in SERIES. ( like Christmas lights)

the magic cuts cost of 6 coil\'s.

so if the HV wires are say, cheap , carbon wire and open

you lose, both spark plugs. use MAG wire and end this issues.

get some nice NGK mag wire or Bosch Mag wires.

you can see i hate carbon wire. for good causes.

(carbon string wire)

mag wires is real wire that is coil spun and is inductive. it

has the correct impedance but is not a resistor its and inductor.

and lasts the longest , and worth every penny.

If your truck has spark plug wires, you will want to change those as well, as a bad wire can cause an ignition coil to short itself out internally.

On my 2001 Cabrio it is on the thermostat housing.

no spark one would think coil have u had it tested and have you check eng light on if so obd 2 scan for faults!!!

The coil pack on these are bad about being defective. You need to check to see if you have power coming from your coil pack. If you do not try changing it out, this produces 60k +/- volts that goes through your ignition wires, to your spark plugs and ignites the gas on combustion with the piston. If it's not giving off a spark, thenyou're not getting power to fire off the engine.

corrosion under the coil pack between the computer plates
Heres a video:http://www.youtube.com/watch?v=t_79_btzOF8

Change the crankshaft senser firstly.The if no spark, the only other thing is the coil pack.

If it is a 1.8 turbo the plugs are under the coil packs on top of the engine. A regular spark plug wrench will fit them. They are down in the block about six inches. They are easy to change. I changed them in about 30 min. The coil packs are held on by 2 torx screws.

Just went through the same thing - change out the coil packs, one at a time. Coil packs run $30 - 50.

You may have a bad coil pack - try moving two of them around and see if the misfire follows the coil pack or stays at the same cylinder. If it follows the coil pack, get a new one. If it stays in the same cylinder, inspect your spark plug wires and make sure the plug is gapped correctly.