Low RPM Sputtering on Cold Startups...

[5.0L V8]

So the past couple mornings when I have been leaving for work (4:30am) I have been getting a little low RPMS sputter after it cranks over.

At first I thought it was the starter going out, but no. IT cranks over fine, no starter whine/hesitation. After it fires over the RPM's stay rather low (5-600) until I give it a tap of the gas then fire right upto 1000-1100 until it warms up. Once again, mianly only when it is cold.

To me it almost seems like a fuel delivery problem. Anyone have any thoughts?

I'll try and get a video of it for you guys to see on my next cold startup.

-Evan

 

[shadowless127]

check and clean your IAC.

 

[5.0L V8]

Could the TPS cause this problem as well? Are you able to clean the TPS like you are the Idle Air Control Valve? Throttle response is still crisp and consistent. I had a IAC go bad on my moms Jeep and the RPM's would bob and weave like crazy on cold startups. Nothing like these symptons as where it almost doesn't seem like it is getting enough fuel.

What is the third sensor on the throttle body? Isn't there a total of 3?