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!

[Easy Ed]

Check the fuel pressure by attaching a gauge to the fuel rail. Cannot tell ya where it is at on a 2008 but here is a pic of one on a 2003. Mine runs at 50 psi. as seen in the second pic.

Just a suggestion for starters, others may have other ideas.

P.S. If it is low could be the filter needs replaced.

Attachment 53350

Attachment 53351

[PaHumBug]

Maybe some cylinders are missing? Check plugs and wires? Or would that show up on the computer? Just a thought.

[AshleyinTX]

It stalled on me three times again today. The engine was cold (as was the case the first time it stalled). I was trying to back it out of a parking stop. Engine was difficult to fire (took 15 seconds of sitting on the starter). Engine finally started, when i shifted to reverse, rpms dropped and it died. I repeated this three times until I finally got it to reverse and not die. I'm taking it to the dealership in the morn. My husband thinks it's a bad fuel pump. Your thoughts?

[H2RobP]

Just went through this on my 05. Replaced fuel pump and ultimately the crankshaft position sensor. Now runs perfect. I would first replace or check sensor with code reader. My 05 showed no trouble light on dash but code reader picked up the bad sensor. $45 a local Auto Zone.

[HUMTECH]

A dirty throttle body can cause cold engine hard start and stall