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GM Programming Error Code E4491
Hi Everyone. We have a 2003 Chevrolet Silverado 2500 HD 6.6L (VIN 1GCHK23143F164186) in the shop now that is giving us an error code while attempting to reprogram the ECM. The customer recently purchased the truck and was told it already had a aftermarket perf... Login to read more.
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| Engine | 6.6 L |
| Trans | 5-speed Automatic (Electronic) |
Vehicle Data
2003 Chevrolet Silverado 2500 HD 6.6L
| Engine | 6.6 L |
| Trans | 5-speed Automatic (Electronic) |
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