Won't start when cold, after sitting overnight.

If you replaced the fuel pump and it does the same thing, I need you to try something. Turn the key to the run position for five seconds, then off, then back to the run position for another five seconds, then off and then try to start it. Does it start?

If it does not start, check fuel pump pressure. It may be a bad pump that is not producing the pressure needed for cold starts and it could be the regulator that is bad. If you need directions, visit our homepage under the DIY section for directions and a video. If I recall, you need to remove the dog box in this vehicle to access the pressure port on the fuel rail. (Somewhat of a pain) If you use our directions, make sure to pay attention to fuel pressure drop off.

Let me know what you find.

Just an after thought. I replaced one of these pumps about two months ago. The vehicle did the exact same thing. It required starting fluid to start it the first thing in the morning. It was the fuel pump that was unable to meet the engine's needs on a cold start. Once I replaced it, there were no more issues. (I call them lazy fuel pumps. They can keep the engine going, but cannot produce when cold)