coils packs starting to go??

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coils packs starting to go??

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Blazer Forums >> Mechanical & Maintenance >> General Tech Help >> 2nd Gen (1995-2005) Tech >> coils packs starting to go??

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coils packs starting to go?? - 6/30/2008 4:06:01 PM

mikeinwi

Posts: 56
Joined: 4/26/2008
Status: offline

is there any signs that coil packs are starting to wear out and if so what are they and how quickly should they be addresed??

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2002 2wd 4dr Blazer
KandN cold air intake
Dual cat back exhaust with glasspacks
angel eye projection headlights and clear turn marker lights
3.42 gears positraction rear end with limited slip axel

Post #: 1

RE: coils packs starting to go?? - 6/30/2008 4:18:11 PM

lfuller11

Posts: 8
Joined: 6/11/2008
Status: offline

You might see some white arcing marks from either the wires, or on the pack itself.

(in reply to mikeinwi)

Post #: 2

RE: coils packs starting to go?? - 6/30/2008 5:31:29 PM

swartlkk

Posts: 13651
Joined: 5/1/2005
From: Waterloo, NY
Status: online

You will start to get random misfires, worse while under load. It will get to the point where you won''t be able to drive the thing because it won''t be producing a hot enough spark.

Most often, the overmolded plastic case will crack due to corrosion on the coil stack.

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Kyle-