Sqeal and pop

[TetonLC]

Driving down a mild dirt road in the McCullough Peaks looking for wild horses outside of Cody WY, I had a loud squeal / screech for a bout 2 second and then a loud pop.

After that the vehicle drove fine.

Any ideas?

Given the road, is it possible a rock popped up into the belt?

Literally sitting out on the road now looking the engine over before I drive any deeper into this desert

 

[TetonLC]

Update. Squeal is somewhat quiet but consistent now with rpms. No noise at idle. Sounds almost like a supercharger

 

[TXLX100]

Sounds like you may have a bad pulley.

 

[TetonLC]

Ok to continue driving?

 

[TXLX100]

I don't know, if it is in fact a pulley, it could seize up and break the drive belt. Do you have any more info about it? Is it from front of engine, etc? Does it get louder/quieter with RPM change? Does it sound better or worse with AC on or off?

 

[TetonLC]

It does fluctuate with RPMs. I do not tell different AC on or off. At highway speeds I cannot hear it all. In fact the only time I can hear it is with windows down and driving very slow.

 

[TrekboxX]

Did you make it out of there, or do we need to send the search party? Debris in the belt is a good call. Is it the first time you've driven slowly in the heat for a while?

 

[TetonLC]

I made it out alive!

Yes this was the first time I had it in high heat at slow mo. I had also been up in the Pryor Mountains for several days bouncing over rocks before hand. Problem began in the McCulloughs however.

Now that I'm back in Jackson Hole and driving around town (with building to echo sound back for me) I have more to add.

There is now a continuous whine. It does change with AC. When I turn it off it goes down. But it still wines with AC off.

It also seems to change when I turn the steering wheel as well now.

None of this was apparent until the screech an pop in the desert.

 

[TrekboxX]

I'm no mechanic, but I imagine the problem lies in your accessory drive system. Darn, I could have used a rescue trip to the mountains

 

[adrenalinefjz80]

X2. Idler pulley is the cheapest and most common replaced, but spin the pulleys once you take the serpentine belt off.

 

[TetonLC]

1407driver, let me know if you are ever looking to head out that way and Ill meet you up there if I'm not on the road (I'm a wildlife photographer and so travel ALOT). Always looking to get out on a trail.

So is the consensus that my serpentine belt should be pulled and replaced and check corresponding components when I do?

Thanks guys!

 

[ENGINE er]

if it changes with the steering wheel turning it is most likely the power steering pump.