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

1999 PONTIAC GRAND AM
47,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
Avatar
DAN DAVIES
  • MEMBER
  • 7 POSTS
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.
Mar 13, 2022 at 5:14 AM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 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
Mar 13, 2022 at 7:27 AM
Avatar
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.
Mar 13, 2022 at 8:18 AM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
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
Mar 13, 2022 at 2:10 PM
Avatar
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.
Mar 13, 2022 at 2:43 PM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
You are welcome.

Always glad to help.

Keep us updated on the repair.

Roy
Mar 13, 2022 at 2:44 PM
Avatar
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?
Mar 16, 2022 at 11:14 AM
Avatar
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?
Mar 16, 2022 at 11:38 AM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
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
Mar 17, 2022 at 6:59 AM
Avatar
DAN DAVIES
  • MEMBER
  • 7 POSTS
I figured it out but thanks for the info. Patience is the word. Thanks again.
Mar 17, 2022 at 7:03 AM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
You are welcome.

Always glad to help.

Let me know if you have any other questions.

Roy
Mar 17, 2022 at 7:37 AM
Avatar
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.
Mar 17, 2022 at 10:32 AM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
You are welcome.

Always glad to help.

Roy
Mar 19, 2022 at 5:04 AM