Hi, I have a 1985 Maxima that starts fine in the summer but when the temp goes below 50 degrees or so the car will not start right up. It cranks for 15-20 sec and then starts and idles OK. At this time if you abruptly step on the gas pedal it will die. You can very slowly rev the engine up to higher RPM's. After a minute it runs fine but I worry that I am going to ruin the starter motor. I have taken it to several mechanics that have not been able to figure it out. (one of which changed the spark plugs, wires, and distributor cap with no change in the ability to start) I have changed the fuel filter and fuel pump. Does anybody have any ideas? OK thanks, Alex