andyval

I am new to the jeep world. I have a 98 cherokee 4.0 sport. Just replaced the brakes front and rear. When I went to take it on a test spin around the block I get a loud grinding noise when making a left hand turn. It sounds like its coming form the passenger side front. Can anyone give me some pointers on what this could be?

Lowrange2

I'd imagine it'd be pretty obvious what the issue is if you were to get that wheel back off the ground and spin it by hand.

Maybe you bent the dust shield onto the brake rotor.

Maybe you left a ratchet in the wheel.

Maybe there's a cat hung up in the rotor.

Maybe you didn't bolt the caliper on right.

There's a million things here. Jack it up and look.

andyval

didnt see any fur anywhere so im guessing no cat.
im thinking it might be a hub.

Lowrange2

It started right after the brake job? I could see them being the wrong rotors and grinding on the backing plate... I don't think your unit bearing decided to go bad during the brake job. You didn't take the hub off when you did the brakes did you?


Like I said, it should be obvious once you get the Jeep off the ground and look with your eye *****.

andyval

It was my first time driving it since i bought it. i bought it off a lady who wore the rotors down to the cooling fins. she didnt want to fix it and sold it to me for $600.

Lowrange2

Ah, well I guess that makes sense.

I'd still get it off the ground and spin the wheel by hand.

A constant rotational grind will be easy to find.

mdnov

When you bought it and drove it home did you have any issues?

Lowrange2

I seriously doubt he drove it home with a non-existent brake rotor.

andyval

i had it towed on a flat bed due to the brake caliper piston pushed out to where it was leaking brake fluid.

mdnov

Jack the front end up. Try spinning the wheel with the tire on and the tire off. If you get the grinding noise with the tire off, it may be the bearing. If you get the grinding noise with the tire on, you most likely got the wrong size rotor,(they come in two sizes). Compare the hat hights between the old one and the new one. Replace it with the size of the one that came off.

mdnov

Did you replace the caliper? Was it damaged or salvagable?

andyval

i replaced everything rotors, calipers, pads, shoes, drums, hardware, wheel cylinders, and flushed the brake fluid.

mdnov

Ok new plan. Do all of the stuff above but, if you get grinding with the tire on and off. Then with the tire off and it still grinds, try removing the caliper. Then try to spin it with the caliper off. If you get the grinding with the caliper off, it is most likely the bearing. If you get the grinding with the caliper on and the wheel off it is most likely the caliper. Hope this makes sense.

mdnov

Nice job on the complete brake job! Flushing the brake fluid was an excellent thing to do.

andyval

makes perfect sense. just wanted a litte reassurance before i chace somthing thats not there. lll keep you guys posted thanks for all of your time