Intermittent starting issues replaced the coil pack?

1995 CHEVROLET 1500
460,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
Avatar
FUNNY WORDS
Sometimes starts fine, other times doesnt want to start. Just replaced the coil pack, wireset, spark plugs , distributor rotor and cap. No spark to plugs about to check to see if coil to distributor has spark but was wondering where camshaft positioning sensor is
Feb 23, 2026 at 2:02 PM
Advertisement
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,494 POSTS
  • ASE Certified Mechanic
I don't think the camshaft sensor will not make it start but you can try it. Also, I would check the compression as well. Here is a video to help you check which system is not working to help narrow the problem down.

https://www.youtube.com/watch?v=lXLJbuAZ4CE

Here is the location of the camshaft sensor, we need to see which system is failing to pinpoint the fix. Also, can I ask if the security light is flashing while you are cranking the engine over? If so this is the problem. Please upload a short video in your response of the problem, so I can see what's going on. Check out the images (below). So there might not be a camshaft sensor depending on the date your truck was made, here is the location if your truck has one. Ken
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Feb 25, 2026 at 8:05 AM
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.