1998 GMC Sierra C1500, 5.0L, 4L60 Trans- Fuel Pump Does Not Turn On

1998 GMC C1500
10,200 MILES
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03OXWHITEMACH
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Fuel pump will not turn on. Tried a new fuel pump relay with no luck. Jumped pin 30 to 87, fuel pump will turn on and the truck will start.

Upon driving the vehicle the transmission shifts extremely hard, even under light load conditions.

Check engine light came on (wasn't on before). I'm thinking PCM/VCM, as this is the only thing that controls both the transmission shifts and the fuel pump cycling/running.

Any opinions or advice would be greatly appriciated before I spend $250 on a new one.

Thank you for your time.
Mar 29, 2012 at 12:57 AM
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RIVERMIKERAT
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Have it scanned for both hard and soft codes. At least the trans problem should show up there. We can go on from there.
Mar 29, 2012 at 3:04 AM