a recurring problem with the Ignition Control Module - Chevy Impala Forums
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post #1 of (permalink) Old 01-05-2017, 06:00 AM Thread Starter
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a recurring problem with the Ignition Control Module

Hello all !
I have a strange problem and do not know where to look for the problem ... three times already damaged my ignition control module. Just driving the car I go out,... spark disappears and I can not fire, of course, after replacing everything goes back to normal the next time ... why did damage my module? ... Any idea council? suggestions? Help! ... I miss the ideas.

Thank you in advance

Chevrolet Caprice Classic Brougham'89, V8 5.0L/TBI
Dodge Grand Caravan'04, V6 3.8L
Jeep Grand Cherokee'94, V8 5.2L
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post #2 of (permalink) Old 01-05-2017, 07:24 PM
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Czesc Kamol! What supplier and part number are you using? Also I would highly suggest that you put a liberal amount of dielectric grease under the module. Where do you live in Poland? My wife is from Poznan.

Powodzenia!

Pat
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post #3 of (permalink) Old 01-06-2017, 11:48 AM Thread Starter
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Poland bought the module's STANDARD LX340 which included dielectric grease ... of course I used it ... despite this module has failed ... because I have no idea what is wrong ... if any short circuit can cause damage? ...
Greetings to your wife I'm from Lubin province. Dolnyśląsk about 150 km from Poznan

Chevrolet Caprice Classic Brougham'89, V8 5.0L/TBI
Dodge Grand Caravan'04, V6 3.8L
Jeep Grand Cherokee'94, V8 5.2L

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post #4 of (permalink) Old 01-06-2017, 07:34 PM
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Ok Standard is good brand! You have a problem some where in the cap. When is the last time you did a full tune up? If you don't have any kind of ignition scope handy I am afraid you going to have to do a full tune up. I mean plugs, wires, cap, coil and rotor. Something is creating a high heat issue and frying the module. The heat could be caused by the cap (cross fire or bad rotor carbon button), rotor (cross fire or burn through) or the coil.(delaminating or breaking down internally. It will be a costly up front probably $150.00 USD or about 600 zloty.

Pat
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post #5 of (permalink) Old 01-09-2017, 03:34 AM Thread Starter
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welcome back!
All things related to the ignition exchanged recently ... high voltage cables, spark plugs, etc. ... Now I have a strange event have now the topic of my chevy firing it happened to me twice ... so on a cold engine fires without any problem .. . after firing runs evenly and smoothly and when it reaches operating temperature (about 90 degrees) just goes out and spark fades as it gets cold ... everything returns to normal. Is that ICM? ...
I'm running out of ideas

Chevrolet Caprice Classic Brougham'89, V8 5.0L/TBI
Dodge Grand Caravan'04, V6 3.8L
Jeep Grand Cherokee'94, V8 5.2L
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post #6 of (permalink) Old 01-09-2017, 06:57 PM
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Everything is pointing to the coil. When coils heat up and then the spark goes away and cools down and spark comes back. And again this would explain the early death of your modules!

Pat
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post #7 of (permalink) Old 01-10-2017, 12:06 AM Thread Starter
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has just ordered a coil ... I hope that the problem will disappear as mention ... I will know what will be the effects on the exchange. Greetings to you and wife.

Chevrolet Caprice Classic Brougham'89, V8 5.0L/TBI
Dodge Grand Caravan'04, V6 3.8L
Jeep Grand Cherokee'94, V8 5.2L
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post #8 of (permalink) Old 01-10-2017, 04:50 AM
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Was the problem there before you did the tune up or after? Also did the coil get transplanted from one cap to the other?

Pat
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post #9 of (permalink) Old 01-10-2017, 11:47 PM Thread Starter
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hi!
After buying the car I replaced all the components connected to the ignition ... spark plugs, high voltage cables etc. but I did not mention the ignition coil ... because the engine was OK ... until today so I hope that it is the coil which is the only it is the "old"

Chevrolet Caprice Classic Brougham'89, V8 5.0L/TBI
Dodge Grand Caravan'04, V6 3.8L
Jeep Grand Cherokee'94, V8 5.2L
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