what would cause the ignition module and coil to go out every week or two?


Asked by Mar 05, 2007 at 05:27 PM about the 2003 Chevrolet Cavalier

Question type: Maintenance & Repair

2003 cavalier 2.2 ecotech

5 Answers


Bad and/or worn out spark plugs could do that. The coils and ICM interact so one can damage the other.

1 out of 1 people think this is helpful.
Chris McKittrick

I have been there with this problem. I have the 2.4 so its different, but my ICM was bad so it was causing my coil housing to go out.

1 out of 1 people think this is helpful.

I have the same Cavalier, and replaced the coil pack, and the ignition control module in mine 9/08. I had the ICM replaced in 1/09 again. Engine light came back on two weeks later. I'll have it looked at, along with the coil pack. Doesn't make sense to me, but I don't understand the electrical end of cars at all.

3 out of 3 people think this is helpful.

i also have the same car 2003 ecotec 2.2l i have had the problem sence i got the car some times weekly sometimes once a year but i have not solved the problem yet but i notic part of the problem is cold and wetness in the houseing a few tips i have pull out the module and clean the contacts well with alchol or an eletric cleaner replace the unuion plug between the module and the houseing with a new one evry time but put eleitric grease on the contacts befor hand and apply some atv silacone to the rubber gasket on the plug to keep water out and use a wire brush or lite sand paper to clean the ground contacts on the houseing and the module there where the screws go and meet the housse you should bee able too see the diffrance sorry about the spelling i hope this helps . if you have any more people i would love to hear it im still burning them up for some reason and no one has an anser so ?

2 out of 2 people think this is helpful.

Dear rearroo3-- I think the alternator on your 2003 Chevrolet Cavalier might be sending out to much power to these components. I had a friend with a similar problem redently, but instead of the ignition module and the coil, his car sent to much power to all his lights and he burned out bulbs weekly- on a car just a couple of years old. With electrical problems I always recommend consulting a professional mechanic. One wrong adjustment and you could have serious (or more serious) problems. Have it looked at. Good luck from Bovan.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions


Looking for a Used Cavalier in your area?

CarGurus has 1,623 nationwide Cavalier listings and the tools to find you a great deal.


Search Chevrolet Cavalier Questions

Chevrolet Cavalier Experts

#1 John Saffrahn
John Saffrahn
Reputation 2,670
#2 dandyoun
Reputation 1,220
#3 mbar1
Reputation 1,050
View All

Related Models For Sale

Used Honda Civic"
1,124 Great Deals out of 58,275 listings starting at $1,300
Used Ford Focus"
1,182 Great Deals out of 57,133 listings starting at $1,495
Used Chevrolet Malibu"
1,142 Great Deals out of 72,674 listings starting at $695
Used Chevrolet Impala"
931 Great Deals out of 35,797 listings starting at $700
Used Honda Accord"
1,265 Great Deals out of 77,933 listings starting at $1,395
Used Chevrolet Camaro"
795 Great Deals out of 38,866 listings starting at $2,650
Used Toyota Camry"
1,592 Great Deals out of 98,270 listings starting at $895
Used Honda Civic Coupe"
331 Great Deals out of 16,316 listings starting at $799
Used Nissan Altima"
1,402 Great Deals out of 87,730 listings starting at $1,195
Used Pontiac Sunfire"
548 listings starting at $1,700
Used Toyota Corolla"
1,411 Great Deals out of 67,011 listings starting at $1,295
Used Ford Mustang"
720 Great Deals out of 41,399 listings starting at $900
Used Chevrolet Tahoe"
1,105 Great Deals out of 36,351 listings starting at $1,700