Question about 2004 Pontiac Grand Am

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No coil pack on motor what makes it fire and where is it located

On a grand am 2004 4 clinder

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I'm not real familiar with that car, but a lot of the newrer cars have gone to coils that sit right on top of the spark plugs. There are no more spark plug wires, the coils get a signal from the computer. The computer is getting information from the various sensors on the vehicle, then it send signals to the coils and fuel injectors. The computer takes care of the timing and fuel mixture, it will automatically adjust for temperature, elevation, vehicle speed and so on.

Posted on Dec 12, 2009

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Posted on Jan 02, 2017

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2004 chrysler van 3.8 motor replaced coil pack still doesnt fire number 4 cylinder


If the coil pack has a four wire connector, one wire is primary voltage, the other three wires are ground, one ground for each coil, one coil fires two spark plugs. If problem with coil or ground, you would lose spark for two spark plugs. Did you visually check for spark, everywhere? What about the spark plug wire or the spark plug, itself?

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Firing order jeep Cherokee 2004 3.7 l v6


are you doing spark or timing a cam? what? what is JOB?
it dont matter, the engine, ecu does that, (magic)
but if it has a coil pack like my 3.8 then the coil pack must
be wire right and is marked. clearly on the pack.
they have USA jeeps and Export. country never stated here. sad huh?
and use differnent spark systems (3 types used, but 2 common)
per below.

v6.
is this not a Cheokee? the non Grand ended in 2004. so...
ill go with GC 2005, v6 3.7L
the v6 began in 2005, not 2004, but, maybe yours is the first./

the 3.7 has coil over plug, spark, 6 coils.
and the harness is fixed to those coil so all firing order are
dictated in the ECU/PCM (hard coded)

VIN engine code, K. (not stated)
http://www.fixya.com/cars/t13893405-firing_order_diagram_3_7l_jeep_2006

and already asked, and answered .

my 3.8 (2004) jeep.
is 1,2,3,4,5,6
and is like this.

mine uses wasted spark system.

http://www.fixkick.com/look/odds-ends/jeep/2008-JK/slideshow/firing-order.JPG


so post VIN, or tell what engine is really there.
and the true year. or build date (sticker)

so my answer is.. 2005 GC, 3.7L V6, not I-6
it has 6 cops, "coil over plugs" 6 induction coils
and runs same firing order, as the old I6 did.
1-5-3-6-2-4
but the I6 4.0liter runs a coil pack and is quite different.
these;

25312317-ojiabjcoymo5cw32jzjg31w5-2-0.gif
times 6
all laced in, hard.

Dec 07, 2014 | 2004 Jeep Grand Cherokee

1 Answer

How do I find the coil pack on my 2004 kia optima?


The coil pack is located under plastic cover in upper motor y valve cover. this vehicle have a 2 coils, one for 2 cilinder

Jun 29, 2014 | 2004 Kia Optima

1 Answer

I had two spark plug wires come off the coil,need the firing order on the motor and coil,It's a 3.9V6


STANDING FRONT OF VECHICLE CYLINDERS FACING YOU ARE 4 5 6 AND BACK CYLINDERS IS 1 2 3 NOW ON PIECE PAPER LOOKING AT IGNITION COIL PACK FACING YOU WRITE BACK NUMBERS 123 AND UNDER THAT NUMBER 1 2 3 WRITE FRONT NUMBERS 5 6 4 THATS YOUR COIL PACK PLUG WIRES LOCATION. LIKE I SAY 5 6 4 IS PLUGS WIRES LOCATION FACING YOU AND BACK NUMBERS 1 2 3 PLUG WIRES LOCATION ON COIL PACK. FIRING ORDER IS 1 4 2 5 3 6

Apr 04, 2011 | 2004 Ford Freestar

1 Answer

Clinder No 2 is miss firing i changed the coil pack and spark plugs would it be the spark wires


It can be a wire. You can buy them separately as a generic. Just take the old wire in and match the length and boot type.

If you have another plug wire to fit temporarily, clear the computer and see if it solves the problem. The problem can also be an injector. They are more generic and you can move the injector from #2 to another cylinder and see if the defect follows. Remember to clear the computer after making the change.

May 17, 2010 | Cars & Trucks

1 Answer

I have a 92 grand prix one of the three coil packs wont fire replaced it still no fire


Have you checked the ignition control module. Depending on what engine you have it will be located under the coil packs. It could be faulty.

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1 Answer

Cranks will not start where is the sensor that makes it get fire to the motor I belive it is not fireing .


Grab a Spark tester from a parts store if you believe it is not firing, and locate the coil packs. Plug the tester on to the coil pack, and in to the corresponding plug wire when you turn it over you will see spark if it's working. If a coil is not working, switch it with another coil and see if the good coil has spark in the same position as the one that appeared bad. If the good coil also does not fire from that position, thecontrol module is bad. The control module is the plate that the coil packs sit on it is quite easy to replace by removing the coils, however not the cheapest part, hopefully it is the coil for your sake.

Dec 12, 2009 | 2004 Pontiac Grand Am

1 Answer

How do I change the spark plugs in a GMC Envoy 2002


Location of spark plugsThey are located along the top of the motor under coil packs that fire the plugs. You have to remove the resonator box from the top of the motor to gain access.
Each coil pack is secured with two long skinny bolts and must be removed carefully. Then simply lift it off and remove the plug directly underneath it.
Use only AC Delco iridium plugs. 100k mile intervals.

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1 Answer

2004 Cavalier with 2.2 Ecotech. Running very rough The two outboard spark plugs are firing, the two inboard plugs are not. The question is: which is more likely to be the trouble, the module in the...


I would bet it is one of the two coil packs, the modules rarley go bad.to make certain you can take the two coils off and switch their locations
just make sure you put the spark plug wires back on the coils as if you did not switch the coils. there are two small bolts holding each coil on. PLEASE rate my answer because I am new on here. chrisdaddyp@aol.com

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