My '01 4.4 is freaking out...

[o. l. t.]

Originally Posted by waffles

c
-when i tap the gas lightly, the engine doesnt go off, rather it dips reallz low then battery light comes on and RPM shoots up just like when the car starts. Electrical or mechanical problem??

This is because your sensors have been reset. If it doesn't clear up after a few days of driving you will likely have to replace the MAF. When the car ECU hasn't been reset it runs off a cache file of information it uses as a baseline and only changes mildly during driving. With the ECU reset from the battery change you can always find a bad MAF if the truck does what you are saying and doesn't come back around after a few days of learning the MAF again. Learned that the hard way on my Mercedes CLK 430. I have made this bet with people and won every time.