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Besides spark plugs what other parts do I need to replace the coil packs, connectors and clips?

Tiny
DAN DAVIES
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 47,000 MILES
Cylinder one misfire. I'm sure plugs haven't been replaced. Twenty-three-year-old car only had 42,000 miles on it when I bought it last year.
Sunday, March 13th, 2022 AT 5:14 AM

12 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Whenever we had one of these with a misfire, we replaced the plugs, boots, coils, and cap adapter. The cap adapter is the most common failure.

I attached the procedure for you.

Let me know if you have any other questions.

Roy
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Sunday, March 13th, 2022 AT 7:27 AM
Tiny
DAN DAVIES
  • MEMBER
  • 7 POSTS
You guys' rock. Fast reply, you send easy to see the steps. One question though, where is the cap adapter located? I searched and searched those diagrams and didn't see it. I know my eyesight isn't great, but no luck. Thanks in advance.
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Sunday, March 13th, 2022 AT 8:18 AM
Tiny
ASEMASTER6371
  • MECHANIC
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Thank you for the kind words.

When you remove the top cover, turn it over and it is there bolted to the inside of the cover. Four little screws and it comes off.

Roy
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Sunday, March 13th, 2022 AT 2:10 PM
Tiny
DAN DAVIES
  • MEMBER
  • 7 POSTS
I did some checking and found that part. I haven't gotten it any repairs yet as it's been cold and snowing. Tomorrow looks promising though. Than's again.
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Sunday, March 13th, 2022 AT 2:43 PM
Tiny
ASEMASTER6371
  • MECHANIC
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You are welcome.

Always glad to help.

Keep us updated on the repair.

Roy
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Sunday, March 13th, 2022 AT 2:44 PM
Tiny
DAN DAVIES
  • MEMBER
  • 7 POSTS
So I've got the new plugs in but little improvement. Have the new coil pack and cap adapter. What's the secret to holding the coil packs in place when you put the adapter cover on?
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Wednesday, March 16th, 2022 AT 11:14 AM
Tiny
DAN DAVIES
  • MEMBER
  • 7 POSTS
So, I've got the new plugs in but little improvement. Have the new coil pack and cap adapter. What's the secret to holding the coil packs in place when you put the adapter cover on?
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Wednesday, March 16th, 2022 AT 11:38 AM
Tiny
ASEMASTER6371
  • MECHANIC
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Take off the top cover and work on it on a flat bench.

Look at the pictures and the procedure and follow them.

Roy Belding
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Thursday, March 17th, 2022 AT 6:59 AM
Tiny
DAN DAVIES
  • MEMBER
  • 7 POSTS
I figured it out but thanks for the info. Patience is the word. Thanks again.
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Thursday, March 17th, 2022 AT 7:03 AM
Tiny
ASEMASTER6371
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You are welcome.

Always glad to help.

Let me know if you have any other questions.

Roy
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Thursday, March 17th, 2022 AT 7:37 AM
Tiny
DAN DAVIES
  • MEMBER
  • 7 POSTS
Got it put back together and runs better than new. Replaced plugs, cap adapter, boots and 1 coil pack. Thanks for all your help.
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Thursday, March 17th, 2022 AT 10:32 AM
Tiny
ASEMASTER6371
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You are welcome.

Always glad to help.

Roy
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Saturday, March 19th, 2022 AT 5:04 AM

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