02 Bravada with 235K. I'm not sure how to describe the problem but the front end (or maybe the back) squeeks or chirps when driving normally, I can hear the chirp from 5 mph and it doesn't go away even at 60 mph. I'm not sure what caused it so here's what I did to the vehicle:
1 year ago: I took out the CV axles and 'disabled' the transfer case because of a bad front diff.
6 months ago: -Replaced the front 2 wheel bearings.
-Replaced the front brake pads and rotors:
-Brake pedal felt spongy and pulsated a little, so I flushed out the lines (one person method) except for the front driver side because I couldn't get the bleed valve screw to open.
-Pulsation persisted as well as noise which sounded like the pads touch the rotors once a cycle which was very noticeable after hard braking. After lubricating the glide pins, it seemed to go away for about a month or two.
5 months ago: -New ball joints and sway bar links
4 weeks ago: -clicking noise in the front end. El cheapo hubs! Luckily I had an extra one hand so I replaced it. Smooth ride again
3 weeks ago: -I heard the chirping noise once, very low and it went away.
2 weeks ago: -New Detroit axle struts and shocks. The struts were about an inch longer than OEMs but they fit after loosening the sway bar links. No chirp no weird noises but pulsating in the brake pedal still remain
Last week: -Got an alignment and everything went to crap. LOUD chirping noise and shop blamed it on my brakes which I cant blame them as the brakes were pulsating and feeling funky.
-Since I had tires of different brands in the front, I moved the 2 tires from the back (same brand) to the front (all tires are P235/65 R17 )but the chirping remained.
-Installed new glide pins and boots in the front made sure everything is lubed and torqued properly. Now the brakes sound like an impact sprinkler when applied (chirping goes away) but once I let go of brakes, chirping is back. The faster I go the more it chirps
Doesn't matter if I'm turning, going uphill or downhill, in neutral or in drive, flat or bumpy, the chirp is still there. I will be replacing the rear brakes and rotors Thursday but other than that I completely give up on this. Do you guys have any idea what this could be? Maybe a U joint?
Brakes applied:
Chirp sound (no brakes applied)
1 year ago: I took out the CV axles and 'disabled' the transfer case because of a bad front diff.
6 months ago: -Replaced the front 2 wheel bearings.
-Replaced the front brake pads and rotors:
-Brake pedal felt spongy and pulsated a little, so I flushed out the lines (one person method) except for the front driver side because I couldn't get the bleed valve screw to open.
-Pulsation persisted as well as noise which sounded like the pads touch the rotors once a cycle which was very noticeable after hard braking. After lubricating the glide pins, it seemed to go away for about a month or two.
5 months ago: -New ball joints and sway bar links
4 weeks ago: -clicking noise in the front end. El cheapo hubs! Luckily I had an extra one hand so I replaced it. Smooth ride again
3 weeks ago: -I heard the chirping noise once, very low and it went away.
2 weeks ago: -New Detroit axle struts and shocks. The struts were about an inch longer than OEMs but they fit after loosening the sway bar links. No chirp no weird noises but pulsating in the brake pedal still remain
Last week: -Got an alignment and everything went to crap. LOUD chirping noise and shop blamed it on my brakes which I cant blame them as the brakes were pulsating and feeling funky.
-Since I had tires of different brands in the front, I moved the 2 tires from the back (same brand) to the front (all tires are P235/65 R17 )but the chirping remained.
-Installed new glide pins and boots in the front made sure everything is lubed and torqued properly. Now the brakes sound like an impact sprinkler when applied (chirping goes away) but once I let go of brakes, chirping is back. The faster I go the more it chirps
Doesn't matter if I'm turning, going uphill or downhill, in neutral or in drive, flat or bumpy, the chirp is still there. I will be replacing the rear brakes and rotors Thursday but other than that I completely give up on this. Do you guys have any idea what this could be? Maybe a U joint?
Brakes applied:
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Chirp sound (no brakes applied)
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