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1997 Chevrolet Express 1500 4.3L Shifting Up
h-e-l-p ...customer came in with DTC 1870 and harsh upshift on occassion. local dealer suggested to change fuel filter? so I did still got that code and no real description. suspect it to be trans related as it sort of goes hand in hand with a harsh upshift af...
FIX posted 2/27/2001
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Message Closed w/FIX
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Related Documents & Media 
| VIN | 1GCFG15W4V |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Affected | Shifting Up |
Message Closed w/FIX
Vehicle Data
1997 Chevrolet Express 1500
| VIN | 1GCFG15W4V |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Affected | Shifting Up |
Video