My 2005 equinox is having occational problems starting. When i turn key it cranks then it continues to crank after i let go of key for a few seconds. if i wait a while it usually starts but when it starts the rpms dip for a second then it runs fine this has happened twice this month(once for over ten minutes wouldnt start) i just bought car 3 months ago. I would think it is some sort of fuel pump issue but it runs great. I googled problem seems alot of people have the same or similar problems with no solutions some have changed fuel pump, fuel filter ignition, some sort of security lockout with the key, and one guy had the computer changed all with no luck.