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2003 Chevy S-10 transfer case

Tiny
LAZLO
  • MEMBER
  • 2003 CHEVROLET S-10
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.
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Thursday, January 8th, 2009 AT 7:50 PM

1 Reply

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
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
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Thursday, January 8th, 2009 AT 8:20 PM

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