Hi I've been having a lot of trouble with my truck lately. First, I've been having trouble withe the idle speed.
https://www.ranger-forums.com/forum2...ad.php?t=15173

And, now I have been hearing a rubbing/grinding noise. It sounds like it has been comming form the right or left front wheel. It happens every so often when i go around a corner. It will make a noise that sounds like a mud flap is rubbing on the tire. Then, i will give it a little gas and it will make a clunk and go away. I took off the front mud flaps yesterday but it made that noise again once today. I am thinking that it could be a locking hub(automatic) or a bearing. It has happened 2 times this week. I have been using 4wd some. I'm thinking that this may have agrivated a problem. It has also been getting cold where i live maybe this has something to do with it. I don't know if the 2 problems are related or not but i'm sure that it doesn't help anything.

Thanks,
CAW

 

Generally when I have a problem with idle speed on my 98 Jeep Cherokee or 00 Ranger.... I remove the IAC and clean the disc surface of the IAC and the seat where the disc surface contacts. Small amounts of build up can cause irratic idle.
As for the rubbing/grinding noise.... you probably should check the wheel bearing, hub assembly and brake rotor.

OR 4x4

 

I had that exact sound you describe [rubbing/grinding noise] from my front right tire after driving cross country...it was the Wheel Bearing, but as OR 4x4 said I would also check the hub assembly and brake rotor.

 

Im having the same problem with the noise but i think it is my calipers sticking. And OR 4X4, what do you clean the IAC with? And which parts...or just the whole thing?

 

You can spray and wipe the IAC plunger, disc at the end of the plunger and the seat inside the intake with throttlebody cleaner....

That should do it.

OR 4x4

 

I've got the IAC problem taken care of now. My bearings or locking hubs didn't make any noise today. But, I am definatly going to look at the bearing and hub. I have read that ranger automatic hubs tend to have some problems. There is a chance that i will need to replace them. Do you guys know of any good locking hubs? I'm looking for the kind that can be changed to manual or automatic. I'm not even sure if they make those or not but, i think i've seen some.

 

Which piece is the IAC? And did that fix your problem?

 

The IAC is on the right side of the intake on my truck. It fastens to the intake with 2 bolts. There is usually a black **** on it , this makes it easy to find. The function of the IAC is to let extra air in when the vehicle is at idle. I replaced the IAC and it took care of the problem. My old IAC had lots of black deposits on it. I think that the valve got cloged and couldn't open or close all the way and caused the weird idle.