I was wondering if anyone had some insight regarding a loud grinding noise that randomly happens towards the front passenger side of my Jeep. This noise does not happen every time I drive, I’ve taken it to three mechanics with no luck, they have claimed to check the breaks and wheel bearings, so I don’t think it’s that.
Here is a recording of the noise, it happens three times in this clip: clyp.it/lsqsa2y1
This noise happens when I’m turning, speeding up, coasting in traffic, stopped at a light, and even sitting in park in a driveway. There are no service engine lights or anything like that on.
It’s a 2004 Jeep Grand Cherokee Laredo, 4.0 with 2WD.
That sounds like the expansion valve for the air conditioning, sometimes they buzz like that, sounds like a trumpet in the dash. Next time the noise begins switch off the A/C and see if the noise stops. The expansion valve doesn’t have to be replaced, the noise is just an annoyance.