- Joined
- May 13, 2000
- Messages
- 4,651
- Reaction score
- 104
- City, State
- Cape Girardeau, MO
- Year, Model & Trim Level
- 94 Sport 4x4
Ok folks, help me out: I have a bird-chirp sound coming from some pulley up front (I think) and I'm needing some 2nd opinions on it...
I've been chasing an rpm-dependent bird chirp in cold weather for the last year or so. So far, I've changed:
1) belt, no change
2) tensioner, no change
3) idler pulley, no change
4) IAC, no change
5) resealed TB, MAF, etc. no change
The sound is not power steering whine. It is not affected by turning at all. It is however rpm-dependent. When I press the gas, the chirp increases in tempo. When I let off the gas, it slows, sometimes disappearing. That's why I think it's some pulley up front. It is not a u-joint, front or rear. It is not a ball joint. (I changed all of those, too)
Now, I'm considering changing the water pump. In the past in other vehicles, some of them very close (Ranger, Bronco II) I've had shaft bearings go bad in water pumps, and it did not sound like a bird chirp. It was a lower sound.
So I may be grasping at straws, but the only pulleys left are alternator, water pump, and power steering. I'm starting with the WATER PUMP. I guess. Does it sound like the water pump could be making the noise?
I've been chasing an rpm-dependent bird chirp in cold weather for the last year or so. So far, I've changed:
1) belt, no change
2) tensioner, no change
3) idler pulley, no change
4) IAC, no change
5) resealed TB, MAF, etc. no change
The sound is not power steering whine. It is not affected by turning at all. It is however rpm-dependent. When I press the gas, the chirp increases in tempo. When I let off the gas, it slows, sometimes disappearing. That's why I think it's some pulley up front. It is not a u-joint, front or rear. It is not a ball joint. (I changed all of those, too)
Now, I'm considering changing the water pump. In the past in other vehicles, some of them very close (Ranger, Bronco II) I've had shaft bearings go bad in water pumps, and it did not sound like a bird chirp. It was a lower sound.
So I may be grasping at straws, but the only pulleys left are alternator, water pump, and power steering. I'm starting with the WATER PUMP. I guess. Does it sound like the water pump could be making the noise?