Chirping noise
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Chirping noise
I have a 95 F150 with a 5.0. I have a strange chirping noise in the motor. I thought it was just the belt slipping. I replaced the belt, belt tensioner and then the water pump. The noise continued. Then I removed the belt and ran the motor. The noise was still there. This eliminated all the accessories. It sounds just like a belt chirp. It sounds like it's external, no knocking or heavy metal sound. Has anyone heard of a harmonic balancer making a noise like this? Any help would be appreciated.
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The rubber looks good and it doesn't appear to have slipped, the factory puts a white paint mark across the two pieces and they're still line up. I would think if it slipped I would also be getting a bad vibration. I was thinking it wore out and it's metal rubbing causing the noise. I see a slight wobble when it's running, but very slight. I already spent a bunch of money on belts, tensioners and water pump and was hoping someone has also experienced this, before I throw more money at it. The truck runs great with only 150,000 miles. I just don't want to be left stranded.
Cargo Master
Joined: Jun 2002
Posts: 2,033
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From: Aurora,Colorado
I am in the same situation-and have just noticed that the Thermactor/air pump pulley has developed a wobble--and suspect that it is the source of this chirping noise.
But if you removed the drive belt-your problem couldnt be this-never mind. Does the noise go away when the clutch pedal is depressed ?-(if your truck is a manual)
But if you removed the drive belt-your problem couldnt be this-never mind. Does the noise go away when the clutch pedal is depressed ?-(if your truck is a manual)
Cargo Master
Joined: Jun 2002
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From: Aurora,Colorado
New distributor or new bushing?? How many miles on the distributor?
Posting Guru
Joined: Dec 2008
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From: Sterling, Va
ok subscribing to this cause mine is doing it and it goes up and down with rpms i'll check that bushing tomorrow
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I had to replace the whole distributor. It was original 150,000 miles. When I took it out and turned the shaft by hand it made the noise. I narrowed it down by taking the belt off and running the motor, it still made the noise. Then I put a long screw driver handle to my ear and the other end down to the base of the distrubutor. I could hear the chirping through the screw driver. This is similar to using a tethoscope.
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I had to replace the whole distributor. It was original 150,000 miles. When I took it out and turned the shaft by hand it made the noise. I narrowed it down by taking the belt off and running the motor, it still made the noise. Then I put a long screw driver, handle to my ear and the other end down to the base of the distrubutor. I could hear the chirping through the screw driver. This is similar to using a stethoscope.
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