No spark no fuel

2003 CHEVROLET TRAILBLAZER
237,678 MILES • 4.2L • 6 CYL • RWD • AUTOMATIC
Avatar
JOSEPH ARREDONDO
  • MEMBER
  • 1 POST
I just put a new timing chain in my vehicle. Before I did so, it ran. Just with bad timing. I have the engine put back together with new oil in it. Have not put the serpentine belt back on or the radiator as I feel this is not my problem. Since I have the engine put back together, before I went any further I wanted to see if it would run for a few seconds. But I am getting no power to the coils and no fuel. I scanned the computer and it gave me a p168 code. Ignition one switch circuit two. I checked voltage at ignition and it is all good. I checked fuses and relays. They are all good. I made sure all sensors and computers are hooked back up properly. But still no luck getting spark or fuel. And my security light does not flash, so I do not believe the pass lock has been activated. Serious help needed.
May 24, 2017 at 10:43 AM
Advertisement
Avatar
HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
try a security reset anyhow sometimes if battery was disconnected it does not light but sets anyhow. See picture.
May 24, 2017 at 12:30 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.