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1994 GMC C3500 Sierra SL 7.4L Surge
Good Evening Everyone! We have a 1994 C30 that surges on accelleration only after vehicle is in closed loop. There is no surge before the vehicle goes into closed loop. All tests of input sensors, engine compression, vacuum, and scope check look good. T...
FIX posted 12/10/1999
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| VIN | 1GTHC33NXR |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / TBI |
| Emissions | Not OBD-II Compliant |
| Symptoms | Surge |
| Occurs | Under Load, in Closed Loop |
| Misc. | Dually |
Message Closed w/FIX
Vehicle Data
1994 GMC C3500 Sierra SL
| VIN | 1GTHC33NXR |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / TBI |
| Emissions | Not OBD-II Compliant |
| Symptoms | Surge |
| Occurs | Under Load, in Closed Loop |
| Misc. | Dually |
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