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1991 GMC S15 Jimmy SLE 4.3L Upshifting
When cold you have to take the RPM's to approx. 2500 before it will shift for each forward gear. When it shifts it shifts firm. Applies good when shifted to drive or reverse from park. Once warmed up it doesn't shift bad at all until you stop, shut it off and ...
FIX posted 10/24/2002
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Message Closed w/FIX
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| VIN | 1GKCS13Z9M |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Affected | Upshifting |
| Conditions | Late |
Message Closed w/FIX
Vehicle Data
1991 GMC S15 Jimmy SLE
| VIN | 1GKCS13Z9M |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Affected | Upshifting |
| Conditions | Late |
6 Replies Received
6 Replies Received
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