I have a 98 work truck 1500 with 100,000 miles on it, and I can hear a
squeaking/screeching noise coming from the engine, that sometimes goes
away for a while. The serpentine belt looks like it needs to be
replaced, what else could possibly be causing this? The truck has air
conditioning. I am also hearing a squeaking coming from the
windshield wipers. I replaced the blades and arms, and took the whole
arm assembly off and squirted wd 40 on the little metal things that
make the arms move. This didnt really do much. Any ideas? Thanks!
My wife's Chevy minivan had an intermittent squeal.
I ignore it but then the low cooklant level light came on. There was never
any sign of a leak.
After they replaced the water pump they found out it was.a coolant leak at
the manifold : the leak wasn't visible because the heat of the engine kept
drying it up.
Can the bearings be replaced or would I need a new alternator,
assuming the noise dosent go away after I replace the serpentine
belt? The wiper noise is only when they are on. If I tilt the wiper
arms back and turn them on, the noise is definitley less noticeable,
but when you place them back on the windshield, it gets louder. Both
of these noises go away for short periods and then return. Thanks!
If it is the alt making the noise, replace it, but again thats IF its the
The source could also be the idller pulley, ot the pulley on the belt
which are both more common causes.
Is there a good method of figuring out which part is causing the
problem? It seems like it is probably a pulley of some sort, do I
just have to trial and error it? I have seen the stethoscope/metal
probe thingies, are they good for this purpose?
The stethoscope works well, place the tip on the object you think is making
Or carefully give the bearing area of the suspected pulley a little shot of
WB40, or even brake clean.
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