2004 Chevy Suburban spark plug missing

2004 CHEVROLET SUBURBAN
115,500 MILES • V8 • 2WD • AUTOMATIC
Avatar
06BOBBER
  • MEMBER
  • 2 POSTS
just changed spark plugs due to mileage. after changing them engine started to miss like it had a foweled plug. I triple checked everthing and instalition and plugs seem fine. was wondering if i caused a problem by unpluging #1 coil during instalation while battery was still hooked up.
Apr 9, 2008 at 7:19 AM
Avatar
MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
Did you check for spark from that coil? Proceed as shown in this video!
https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm
Apr 9, 2008 at 7:24 AM
Avatar
06BOBBER
  • MEMBER
  • 2 POSTS
yes it has spark.
Apr 9, 2008 at 7:45 AM
Avatar
MERLIN2021
  • ✓Experienced Mechanic
  • 17,250 POSTS
First thing you need to do is have the codes read, Autozone does it free, Post the results with the code number(s). Even if the service engine light is not on, there should be freeze frame data stored.
If it won't make it to Autozone, buy a cheap scanner, they can be had for 30-40 dollars, a good investment, since they cover all cars sold in the USA from 96 on...
Apr 9, 2008 at 8:04 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle