00-01 4L80-E Harsh TCC Apply/DTC P1870 or P0741 - kw 4L80E apply automatic converter DTC hard harsh shift TCC torque transmission
| Subject: | 00-01 4L80-E Harsh TCC Apply/DTC P1870 or P0741 |
| Models: | . |
The following diagnosis might be helpful if the vehicle exhibits the symptom described in the PI.
Condition/Concern:
2000 - 2001 light duty trucks, vans and utilities equipped with the 4L80E automatic transmission may experience a harsh TCC apply and/or a DTC P1870 or possible P0741.
Recommendation/Instructions:
Now that you have completed the service diagnostics in SI with no resolution, replace the torque converter to repair the concern.
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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance.
Models:
(00 - 01 Chevrolet Suburban) and (00 - 01 GMC Yukon XL) and (00 - 01 Chevrolet Silverado) and (00 - 01 GMC Sierra) and (00 - 01 Chevrolet Express Van) and (00 - 01 GMC Savana Van)
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