trrouble starting

No specific issues come to mind for your Suburban. You could have a fuel pressure issue, an engine control sensor issue, a idle air control valve fault, or some other mysterious fault. It may be helpful to have a fuel gauge and scan tool connected when the problem occurs. Looking for anything out of spec may lead to the cause of your problem.

I had this problem it is the PMD. you need to replace it. It gets too hot and shuts off the fuel. I have a diesel, replaced no problems with stalling.

The 7.4L engine in speedbump's 1996 GMC Suburban 2500 is a gas engine, therefore it does not have a PMD as pafarmer's diesel engine does. Speedbump, if you have corrected the stalling condition with your Suburban please let us know what fixed the problem.

I had the exact same issue. It was the fuel pump. It wasn't delivering enough pressure. 60$ and a dropped fuel tank later it runs like a top!