no spark have replaced ignition coil?

1998 GMC SIERRA
5.7L • V8 • 4WD • AUTOMATIC
Avatar
JLMINER1969
  • MEMBER
  • 1 POST
have replaced ignition coil distributor pickup and crankshaft sensor what next???
Jan 18, 2015 at 5:30 PM
Advertisement
Avatar
SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Have you check to make sure the distributor rotor spins while cranking the engine?
Jan 18, 2015 at 5:49 PM
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Go call SATURNTECH9, if the rotor spins I would check for power at the positive side of the ignition coil. Here is guide to help, it is the pink wire, if there is no power please check the ECM1 fuse 20 amp, in the fuse panel under the hood. This guide can help

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the images (below). Let us know what you find.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Oct 13, 2024 at 4:16 PM
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 Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.