What would cause misfire on 2,4,6 coil packs

Asked by Oct 25, 2016 at 07:49 PM about the 2010 Buick Enclave CXL FWD with 1SB

Question type: Maintenance & Repair

I have changed the coil packs and plugs but still giving a misfire on those
coils

3 Answers

20

disconect battery for 15 mins and try again

2 of 2 people found this helpful.
1,760

Look for "stuff" ozzing out below the coil pack, there is a circuit board that is potted to protect it from moisture, when it fails and then gets hot, the potting material starts to leak out and that is a clue the circuit board is bad.

Did you happen to figure out what the problem was? My 2010 enclave is doing the exact same thing plus it died on me yesterday on my way to take it to the shop to get the coils changed and now it wont start back up. We cant figure out what it is.

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