Diagnosis Scan Tool Archives - Transmission Digest
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The subject vehicle is a 1999 Chevrolet Tahoe. It came to us on a wrecker, as the customer was not comfortable driving it to us. The concern was stated as harsh shifts and a check engine light on. The vehicle was brought into the shop and the fluid level and condition were checked. The fluid level was full but the fluid had a strong burnt odor and was discolored. A quick scan of the computer revealed code P1870, “transmission component slipping.”