Harsh shifting, delayed upshifts, possible check trans lamp illuminated, possible diagnostic trouble code...
Isuzu technical service bulletin 020730025A for 1999-2003 Isuzu NPR, 1999-2003 Chevrolet W-Series and 1999-2003 Isuzu NQR and others.
- Bulletin number
- 020730025A
- Component
- Power train: automatic transmission
- Summary
- Harsh shifting, delayed upshifts, possible check trans lamp illuminated, possible diagnostic trouble code 21 stored in TCM memory. Tt
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