1. Verify Cable Routing and Attachment:
* Correct Routing: Double-check that the new cable is routed correctly through all the guides and brackets. A misrouted cable will definitely cause shifting problems. Compare its route to a diagram in your repair manual or a reliable online source (like a forum dedicated to S10 Blazers). A poorly routed cable can bind or stretch improperly.
* Secure Connections: Ensure both ends of the cable are securely attached to the transmission and the shifter lever. Loose connections will cause inaccurate shifting. Look for any signs of damage or wear on the cable ends themselves. Make sure the retaining clips are properly seated.
2. Linkage Adjustment:
The S10 Blazer's shifter linkage has an adjustment mechanism. The exact location and method of adjustment vary slightly depending on the year and transmission type (automatic or manual). Consult your vehicle's repair manual for the precise location and procedure. This manual will show you how to adjust the cable and linkage.
Generally, you'll find an adjustment somewhere on the transmission linkage near where the cable connects. This might involve:
* A cable clamp with a threaded adjuster: Tightening or loosening this clamp will adjust the cable length.
* A bolt or nut: Adjusting this will change the position of the linkage arm.
* Shifter lever adjustment: Some models allow minor adjustment at the shifter itself (on the floor).
3. Adjustment Procedure (General Steps - Refer to Your Manual for Specifics):
1. Put the vehicle in Park (automatic) or Neutral (manual). Apply the parking brake firmly.
2. Locate the adjustment mechanism.
3. Shift the transmission through all the gears. Observe the movement of the shift lever and the linkage.
4. Make small adjustments to the cable or linkage. Shift again after each adjustment to see the effect.
5. Repeat steps 3 and 4 until the shifting is accurate. Remember that small adjustments are best to avoid over-correcting.
4. Consider Other Potential Issues (Less Likely but Possible):
* Bent or damaged linkage components: Inspect the entire linkage for any bent rods, broken brackets, or worn bushings. Replacement might be necessary if damage is found.
* Incorrect cable: Though less likely if you ordered it specifically for your vehicle, ensure you got the right cable for your model year and transmission type.
* Internal transmission problems: While less probable if the shifting was fine before the cable replacement, internal transmission issues could also contribute to inaccurate shifting.
Important Note: If you're uncomfortable working on your vehicle's transmission, take it to a qualified mechanic. Incorrect adjustments can cause further damage. Always consult your repair manual for year-specific instructions; attempting adjustments without proper knowledge can lead to damage.
