So this has been happening for a couple of weeks now but it seems to be getting worse. The car has been running great since my last incident back in August (1999 Grand Marquis P1405 Code
) and I just passed 160k miles. However, I'm now seeing a new problem. When it's cold out (below 30 mainly) I have trouble starting it. It will crank and fire up in 2-3 cranks but then the RPMs drop off and the engine dies. The only way I have managed to overcome this is that as soon as the engine fires up I get on the gas for a second or two then let off and the engine will stabilize and the car will stay running. This morning it was especially bad since I didn't drive it for 3 days and it sat outside in 20 degree weather. I had to keep the RPMs up until the engine warmed up them it was just fine. I can experience this problem though after it's been sitting for just 5 or so hours in the cold. This seems strangely reminiscent of a problem I had on my '92 Crown Vic 4 or 5 years ago where a vacuum leak would cause the engine to die at low RPMs. The difference though is that the Crown Vic would start fine but as soon as I would pull up to a stop light and the RPMs would drop, the car would stall. I'm not seeing that on the Grand Marquis. It's fine once you get it to stay running. I've thought possible something in the EGR system but haven't a clue where to even start to diagnose this problem. The computer has not thrown any error codes, I hooked up my OBDII scanner just to be sure. Any help would be greatly appreciated, thanks!!!!