How would I know if I had engine bearing problems i.e. what sort of noises, how loud and how would the performance be affected. When you hear a Squealing sound from other peoples car engines, does this indicate bearing problems / neglect ?
2007-12-29 00:48:17 · 8 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
In general, major bearings (crankshaft, piston rods) do not make much noise even when they have actually failed because of the oil supply keeping a cushion of liquid in the bearing. You can hear the knocking if you use a stethoscope long before you can hear it when standing alongside the car. It is only when the bearing wears so much that the oil pump can't keep the bearing full that it starts to knock loudly enough for you to hear it when standing alongside. Sorry, no squealing when it comes to pressure oiled bearings, unless they lose oil completely and then, for a very short time, there will be a mechanical screeching sound of metal on metal, and the engine will seize shortly thereafter. The squeal you hear from time to time is the fan belt slipping on the alternator, power steering pump or other device driven by the fan belt.
2007-12-29 01:17:04 · answer #1 · answered by rowlfe 7 · 0⤊ 0⤋
Typical squealing noise is caused by loose and slipping fan or serpentine belts on an engine. Only an experienced technician who has worked on your type engine at a dealership or independent shop is likely to guess what a mechanical engine noise means and what causes it.
2007-12-29 08:58:22 · answer #2 · answered by bobweb 7 · 0⤊ 0⤋
squealing noises are normally belts. noises from bearings dont last long because thats usually a sign the engine is in trouble. noisy bearings are followed by silence of a siezed engine
2007-12-29 08:57:52 · answer #3 · answered by bruinsfan 2 · 0⤊ 0⤋
Squealing sounds are usually belts, however failing oil pumps can also squeal....and that's a pretty bad sign, too.
2007-12-29 09:10:37 · answer #4 · answered by skidmark_84 4 · 0⤊ 0⤋
squealing noises are usually belts- bearing noises are usually knocks and yes you get both from neglect
2007-12-29 08:59:47 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Start it up, pull off and put back one spark plug wire at a time. If you get to one and the noise stops, it's a rod bearing.
2007-12-29 08:59:37 · answer #6 · answered by Bob H 7 · 0⤊ 0⤋
it could be alot of things. but a belt dragging or loose would make a squeal if you had a bad alternator or AC compressor
2007-12-29 08:58:46 · answer #7 · answered by johnboy 4 · 0⤊ 0⤋
if its inside the engine,the oil light will come on,
2007-12-29 08:58:57 · answer #8 · answered by Randall T 2 · 0⤊ 0⤋