My 97 tj begins to squeak when i shift it into 4wd...the 4wd works fine but there is a alot of noise. it's a metallic squeaking (not a grinding), like a door hinge or wagon wheel that needs lube. It only does this in 4wd, and while moving. last time i went offroading, about a month ago, i went through some cold, deep water (almost covered the tires) is this a simple lubrication problem or something bigger?
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Re: my 97 tj begins to squeak when i shoft it into
It could be water has gotten to something it shouldn't have, I would check the front u-joints to your front axles. There may be grease fittings on them but most of the time they are sealed or should be at least, u-joints can make a squeaky sound if there is no grease.
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A dragging feeling or sound could be work out brake pads, parking brake shoes or a frozen brake caliper. Once the majority of the brake bad wears away, small metal blades begin built into them begin to make contact with the rotor. This starts sounding like an intermittent squeak to let you know it's time to service the brakes. If ignored, eventually the rivets the hold the pad to the metal back plate begin to grind a groove into the rotor. If deep enough, the rotor will need to be replaced - in addition to the pads. The parking brake can do the same thing. I suggest bringing the car to a brake specialty shop AND your trusted mechanic to be properly diagnosed & evaluated to get an estimate for this repair work.
One of my customers had the same problem. I sprayed all the bushings with WD-40 and the noise went away. The rubber bushings have metal sleeves inside them that bolts go thru, over time, rust will build up and you'll get a squeak. The newer cars have alot of bushings on them.
there are special anti-vibration shims that go between the pad and its mounting surface ... also some systems use a special lub or adhesive .. some high end pads have built in anti squeaking stuff (thats very effective)....some of those also improve brakeing and reduce dusting and wear .. nice pads and i use them a lot but they do cost more ..here is one such site...
...you shouldnt have to put up with squeaking brakes .. the shims usually work fine . retrofitting them is about the same amount of work as installing new pads however they dont cost much.. they should have been installed at your last pad change but they are left out frequently and are often not included in low cost pads ... .
some cars specify that you have to adjust the mounting gap for the pads . they provide shims to do that on better brake brands but not on low cost products .. again the result is noise ...
watch out for low cost pads that have a poor distribution of metalic fill ... those really mess up the rotors ..(look for heavely grooved rotors) ...there were lots of them sold in this country a year or two ago .. ..
Are the front brake pads ok? Some have squeal indicators, it is a tin plate that touches the disc (without damaging) to warn you that the brakes are worn. On the initial stages it will happen more so on slow cornering but will quickly get louder over a matter of days.
Check the pads for thickness, should be min 6mm
Get a friend to turn wheel back and forth in the garage, get on the ground and use your hands to feel where the noise is coming from. Metal gives off a significant amount of vibrations with noise. Should be easy to tell where it's coming from. Could be your rack and pinion, however I would be much more willing to consider ball joints. Hard to tell without getting "down and dirty" on the floor under the vehicle feeling for the noise.
Could be your steering gearbox, tierod end, rack and pinion piston, low power steering fluid, bad serp belt, ball joints, front struts/mounting hardware.
Also test steering with the entire vehicle on the floor and with the front end off the ground lifted by a few floor jacks lifting on the frame of the vehicle.
Ball joints especially on Ford vehicles tend to squeak after a while (mostly since they are the sealed type) even if they pass a safety inspection.
If they are wearing down, they may squeak, and some brakes have a
metallic part that will come in contact with the rotor when the wear
gets to a certian point making an awful squeaking sound telling you
that mabe you should change 'em soon, eh