How do you change the 3 spark plug on 98 blazer?

Answer 1

Yes, it is annoying. Some folks recommend that you remove the steering shaft, but that is not really necessary.
1) Remove the driver's side wheel (make sure the car is supported by jack stands)
2) Pull back the anti-splash rubber flap so you can see #3 plug.
3) Rotate the plug boot to break it free from the plug. Avoid pulling the wire - pull the boot off
4) Use a 5/8 plug socket with a BUILT-IN universal. A 5/8 plug socket with a separate universal will be too long.
5) Remove the plug from the wheel well.
6) Install a new plug using a 5/8 deep socket. Once threaded in, use the 5/8 plug socket from #4 above to tighten.


Note. There is a brake line in the way. You can GENTLY bend it outwards about 1/2 inch to greatly increase access.