my friend has an 87 ford econoline 3/4 ton work van that dies on him while he's driving. it has the 4.9 straight six and an automatic. he doesn't have alot of money and he's trying to diagnose the problem without spending tons of money on replacement parts. The van also has two gas tanks. asometimes, it will have a hard time cranking in the morning on first start up. some fast help woul;d be much appreciated, were trtying to fix it today, thanks.