Start problem. mainly in cold wheather, but don't think that matters anymore, been going on for about 2 years. cranks without starting, can hear fuel pump engaging when key turns on. Have changed fuel pump, distributor, temp control, people tell me to try something, I do but no luck. I can prime with fuel it will start and run fine, shut it off for a period of time and don't start back. This thing is driving me crazy, you go to a garage and they want to start puting everything in the world on it until they fix it or not and cost a fortune, I just don't want to do that. Can you help?