08 H2 stalling

[AshleyinTX]

I just bought an 08 H2 with 58k miles. It stalled on me last week while at a stop light. While idling, it feels like the engine is having difficulty getting gas to it - even with a full tank. I found out the previous owner replaced the fuel pump at 30k miles. That seems abnormal. No engine lights came on and the stall did not register on the computer. What should I check first? Thanks!