Hi all. I have a 2000 Dak 4x4 with the 4.7 L that for some reason won't idle evenly and even dies occasionaly upon deceleration or idle speed. I recently changed out the ECM, but this did not correct the issue. I was wondering if the MAP sensor might be the culprit. I would greatly appreciate any and all feedback!

 

I forgot to mention that I am not getting any trouble codes with this issue. Thanks Again!

 

ima go out on a limb and say maybe the tps thats what was wrong with my mustang when it wouldnt idle right

 

I may be showing my ignorance, Ziggy, but what does "tps" refer to?

 

throttle positioning sensor. also there could be a vaccum leak. mostly the sensor. remove it and clean the carbon off of it. this will create a better contacy. it is on the throttle body

 

clean ur tb out while ur at it..

 

Mine use to do that, not a 4.7 but 5.9 i changed out the o2 sensors and it fixed it.

Meh...

 

We have a 4.7 and it only does that when theres a vaccume leak. Check the hoses on the canister near the drivers side, under the hood. The smallest split in the rubber will cause it to do this.

~CYCLONE_06