how to change spark plugs

2003 CHEVROLET TRAILBLAZER
114,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
DSALEM
  • MEMBER
  • 1 POST
My 2003 trailblazer ls starting hopping all of a sudden and the service engine soon light began flashing. Looking at my engine, I cant find the spark plugs or the distributer cap...help please
Jan 5, 2011 at 9:49 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
There is no distributor cap. The plugs are in the head just as always. Before replacing the plugs, have the computer scanned to identify why the check engine light came on. It may have nothing to do with the plugs but rather a sensor. Most parts stores will scan the computer for free.
Jan 11, 2011 at 5:34 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