This happens in hot and cold weather. 1.6 liter engine. 5 speed. When starting car the car headlights and dash lights will be very dim but car runs good for about 5 min. After a little bit it looses power and wants to stall. If you put the clutch in and rev the engine a few times the lights brighten and stay bright and car runs great. I put new alternator on about 6 months ago. Any ideas what will cause this ? More important, which order should I check things ? Battery,alternator ??????? Thank-You in advance.