2007 Grand Prix stalls at about 5,000 rpm under hard acceleration.

What is your question?

It will do it under hard acceleration and restarts with a little cranking and sometimes the temp gage will not work after it does it for a little while. No codes will be present.

What makes this problem better or worse?

It is the same under hard acceleration.

How long has your 2007 Pontiac Grand Prix had this problem?

1 year