in any car truck anything you own with 4 wheels.

my buddy and me got into it after he had had a few drinks and he said "Man your truck and your g/f's truck idle so low you cant even hear them run id think theyd shut off" i said um every car or truck ive been in idles around 550-750 RPM he said "no thats to low and just because your truck and a few others idle there doesnt mean nothing" i said "no thats a pretty normal idle any more than 750 is a waste and any less that 500 it might stall."

my truck is right around 550-600rpm warm idle 97 4.6L F150
my g/f's truck 92 F150 4.9: is right around 600-650.
my buddys 97 5.4L F150 is the same 550-600RPM

not sure what his dakota with the 5.2L is but i guess it must be higher than mine because mine is wayyyy to low.


thoughts?

 

Ford idles the trucks low to save fuel and also leans out the fuel trims. I have mine set around 640-650 once warm

 

My truck idles at 500 RPM's and my Festiva idles anywhere from 1000-2000 RPMs

 

My truck is 850 on the dot.

 

Airplane is around 1000, and right now my moms Toyota is at 950-1000

 

I don't know, I don't have a tach.

 

haha

yeah i thought they all idle low when its super cold my truck will idle at 1,500 till it warms up.

 

dang nabbit! im in school so i cant check! i think my truck is around that 600-750 mark, cougar is about 950. (its got 4 wheels) tractor is 900ish. "bouncy tach at low rpms.

 

Idle for the 10 generation NA V8/150's is 730 RPM's. Anywhere from 700 to 750 is good, but 730 is perfect. Makes it easy to tell when a problem exists.

Unless you have screwed with the tune.

 

is it bad mine is 550-600!??!?!

 

didn't you say you run 10w-30 in your motor as well?

 

I don't think oil has anything to do with idle speed. Its computer controlled.

 

Same as mine

 

Yup factory is in the mid 500s

 

idle is at 700-720 in park

Never knew of anything that idles that low.. Ive always known the 2v 5.4's to idle close to 700. A few other fords I have owned have been in the 600-700 range that I remember.