Is your tachometer perfectly steady at idle?

[RADIOACTIVE_TOOL_SHED___]

here's a video of my 1993 ford explorer at idle is that normal movement at idle or should it be absolutely steady no movement whatsoever a/c is off

 

[96AWD5.LOL]

Is there an issue you're tracking down? Otherwise that's not bad at all. My idle tents to hunt +/-50 RPMs I'd say. if your concerned about it (I wouldn't be) you can get one of those handheld tachs to verify.

 

[LG57]

Mine is just about dead steady just like yours. I'm happy, the motor is happy>>>>>>>>>>>

 

[BKennedy]

That's pretty good for a 30 year old engine. I've had my 1994 since 1995. It's always had a occasional very slight shudder when at idle. My mechanic brother-in-law said most of the 4.0's do that.

 

[RADIOACTIVE_TOOL_SHED___]

That's pretty good for a 30 year old engine. I've had my 1994 since 1995. It's always had a occasional very slight shudder when at idle. My mechanic brother-in-law said most of the 4.0's do that.

Ahh I was wondering when it's over 90 degrees F it's dead steady but in cooler Temps it hunts a little bit about 50 rpms I just wanted to verify I didn't have a issue

 

[RADIOACTIVE_TOOL_SHED___]

Is there an issue you're tracking down? Otherwise that's not bad at all. My idle tents to hunt +/-50 RPMs I'd say. if your concerned about it (I wouldn't be) you can get one of those handheld tachs to verify.

It runs out great engine was rebuilt less than 2000 miles ago completely overhauled I just wanted to make sure that what it was doing at idle wasn't a issue it fluctuates about 50rpms