2003 Chevy S-10 transfer case

2003 CHEVROLET S-10
Avatar
LAZLO
  • MEMBER
  • 1 POST
Drive Train Axles Bearings problem
2003 Chevy S-10 6 cyl Four Wheel Drive Automatic 107xxx miles

4HI wont engage. 2HI and 4LO works. 4HI and 4LO blink together and goes to either 2HI or 4LO if in neutral. It's not the external motor? as that did not fix the problem.
Jan 8, 2009 at 7:50 PM
Advertisement
Avatar
2CARPRO JACK
  • ✓ASE Certified Mechanic
  • 11,533 POSTS
  • ASE Certified Mechanic
Try this and let me know
BLAZER T-CASE SELF DIAGNOSTIC – Turn ignition for at least 6 seconds.Locate DLC ( diagnostic connector) near right side of steering column. Install jumper wire from pin #13 (orange wire, labels are small but they are on connector, use flashlight) to ground. Turn key on, engine off. Observe shift select buttons. If they all blink once at the same time there are no trouble codes. Otherwise the light will blink (codes are 1-4 flashes) with a 3 second delay between codes if there are more than 1. Run the codes and get back to me with what you find
Jan 8, 2009 at 8:20 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.