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4L80E: No reverse after VB replacement
We are not a trans shop, but this vehicle was here for a smog failure due to a MIL and a code P1870, 112,000 miles. I ran the test with the tech2 for the P1870 and it passed fine with the fluid at about 140 degrees but I was able to get it to set the pending P... Login to read more. 
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14 Replies Received
14 Replies Received
| Engine | 4.3 L |
| Trans | 4-speed Automatic |
Vehicle Data
1999 GMC Safari Van 4.3L
| Engine | 4.3 L |
| Trans | 4-speed Automatic |
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