Question about 2005 Chevrolet Cobalt Sedan

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05 chevy cobalt 2.2 no spark from coil pack

Changed coil pack due to stall and dead miss on 2&3 now i am not getting any spark to from coil pack no breaks in wires do not have a diagnostics computer and the car is not starting possible icm? any ideas on where i go from here

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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gladys_neal
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SOURCE: 1993 Chevy Lumina

what about your antitheft system i have seen lots of ign key cylinders go bad and cannot read the keys resistance

Posted on Nov 07, 2009

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autotherapis
  • 501 Answers

SOURCE: 1989 chevy 1500 v8 wont start out of the blue

That old of a vehicle you might want to take the cap off and check to see if the shaft is turning. You will be able to see the rotor turning. Also look inside the cap and see if the rotor and cap are good inside.

You said you changed the ignition coil module, not sure if you mean you changed the coil too, if not change that.

hope this helped

Posted on Feb 23, 2010

  • 819 Answers

SOURCE: I have a 2002 TrailBlazer with the straight

did you replace only one spark plug? that can cause issues because of differences in resistances between cylinders. also, did the map code stay off after replacing
?

Posted on Feb 28, 2010

roniecon
  • 6826 Answers

SOURCE: 2005 chevy cobalt 2.2 is running rough (putting)

Number three cylinder is miss fire,it does not mean it is the coil,although it could be,remove the coil,and boot,and spark plug,inspect them to see if the plug,or boot look bad,replace the spark plug,and if the boot is burned or distorted,replace it,a fuel injector can cause a miss fire also,but change the spark plug and see if this solves the problem,if not replace the coil,if it is a dead miss,then the coil might be bad,as for the water in the fuel ,the cap is missing,,and 5 dollars worth of HEET will not hurt,also,fuel from the fuel station,can have water in it.It happens a lot.

Posted on Apr 03, 2010

  • 611 Answers

SOURCE: 1998 Lumina 3.1, idles well

first thing i would is test the injectors these are old style injectors usually when they start to fail they mess up on a heat soaked engine

Posted on Jun 11, 2011

Testimonial: "Thank you for the help, it sounds reasonable, so I will have them looked at. dwg59"

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1 Answer

Isuzu 2ltr bakkie nmbr 2 and 3 no spark?


post 3, adds, no spark , 2/3 (and still no year, no country stated)
bad coil pack?
wired wrong, this pack.
no photo of the engine, nor real name of it, Petrol.
btw, we dont have "BAKKIE" here. not a single one.
nor KB trucks, either.
what spark system this car has, im clueless.
4 coils or 1 pack.? if one pack , replace all spark wires
if one pack system , if either 2/3 wire opens, both cylinders go dead. try new spark wires. high voltage,

or you measured spark wrong, on 1 pack car.
it takes 2 spark plugs do do that. 2 good plugs and 2 good wires,
#2 and #3, due to the fact they are wired, in SERIES.
see its called wasted spark system, with 1 coil pack and no distributor..
the testing is unique. on this, setup.
try new spark plugs, gapped correctly
and 4 new HV wires,
I bet its go. if not the coil pack is toasted.

Dec 05, 2016 | Isuzu Cars & Trucks

2 Answers

What causes it to misfire and skip until the tachometer drops to zero?


Check Engine Light and Misfire Due to Ignition Module/Coil ...

repairpal.com > Problems > Chevrolet > Cobalt
Check Engine Light Due to Engine Misfire on Chevrolet Cobalt .... 2007 Chevrolet CobaltVisitor ... The coil pack was bad and was making the cylinders misfire.

Oct 01, 2015 | 2007 Chevrolet Chevrolet Cobalt LS

1 Answer

My 2007 Chevy Cobalt engine light blinks and the motor starts to miss. But the OBD code reader says there is a link error. I changed the spark plugs but it's still missing from time to time. What can I do?


Could be a bad coil but usually blinking is emission related, catalytic converter? Recommend you take that to a certified Chevy mechanic for a diagnostic, it's not that expensive.

Mar 10, 2015 | 2007 Chevrolet Cobalt Coupe

1 Answer

Chevy cobalt bulks at speeds of 35 mph 40mph.thanks!


remove the coil pack assem and look at the spark plugs for tracking lines is so replace the plugs and plug boots if no lines it could be a bad coil pace i own 3 cars with this engine and i keep a coil pack at home

Aug 12, 2012 | Chevrolet Cobalt Cars & Trucks

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Open circut injector 2


A defective signal wire from the processor.

Mar 23, 2012 | 2000 Chrysler Grand Voyager

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05 Ford Escape, coils #3 & #4 not firing. We've replaced the battery, spark plugs, alternator, coil packs, & pcm. Had pcm reflashed. Garage said it had to be coil packs, but just replaced coil packs 3


Check engine light on ? Code's ? What engine ? 2.3 l 4cylinder or 3.ol v-6 This vehicle has coil on plug ignition system , not coil packs ! a coil per cylinder . If new coils an still has no spark , has no B+ voltage to the coil or the PCM isn't controlling them . Without testing i'd only be guessing as to the problem .If the repair shop you had it to can only say it had to be the coils , I'd find another shop to take it to !
Autolite Coil on Plug Ignition troubleshooting

Jun 22, 2017 | Cars & Trucks

1 Answer

2005 chevy cobalt 2.2 is running rough (putting)


Number three cylinder is miss fire,it does not mean it is the coil,although it could be,remove the coil,and boot,and spark plug,inspect them to see if the plug,or boot look bad,replace the spark plug,and if the boot is burned or distorted,replace it,a fuel injector can cause a miss fire also,but change the spark plug and see if this solves the problem,if not replace the coil,if it is a dead miss,then the coil might be bad,as for the water in the fuel ,the cap is missing,,and 5 dollars worth of HEET will not hurt,also,fuel from the fuel station,can have water in it.It happens a lot.

Apr 03, 2010 | 2006 Chevrolet Cobalt

1 Answer

I have a 2002 TrailBlazer with the straight 6,diognostic check said #3 cylinder was dead or misfiring, also map sensor showed up. #3 cylinder was misfiring, so to test the coil pack I swapped #3 coil pack...


did you replace only one spark plug? that can cause issues because of differences in resistances between cylinders. also, did the map code stay off after replacing
?

Feb 28, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Starts fine, smell fuel, rough idle-missing.


have you tried testing your ignition coils, there's 3 of them in a pack, i've had to change a couple when my lumina euro was running badly.
the coils send the spark to the spark plugs, if you have a bad coil, the cylinder won't fire. which would explain the gasie smell. a bad coil will also contribute to loss of acceleration, power and a rough idle.
the coil are rather cheap, about $20cdn each. usually one is dead and the others are good.
to test if your coils are working, what you can do is...
- start your car - unplug one cable and replace it and listen for a change in sound in the engine. if there is a noticable change in sound then that cylinder is working. - if you unplug a cable and nothing happens, and plug it back in and nothing happens, that coil is dead. you will have to replace it (one coil powers two cylinders, each independantly. one cylinder on a coil may work while the other is dead).
*please remember to unplug and replace a cable one at a time. and while doing this don't touch the metal framing of your car, our you'll get a nice zapp.
this is a cheap and easy way to test you coil pack. my friend spent about $1000 and 3 mechanics and they never checked the coils. i did, and didn't cost him a thing.

Jun 05, 2009 | 1990 Chevrolet Lumina

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