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Old 09-17-2005, 15:02   #1 (permalink)
jmooremba@comcast.net
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2001 Ford Ranger Squeak

Hello, all.

I have a 2001 Ford Ranger pickup with approximately 72,000 miles and
just this past week noticed a really bad squeaking sound coming from
the belt area. I took the truck into the shop twice to diagnose the
problem. The first time I took the truck into the shop the mechanic
put belt dressing on the serpentine belt, but the noise continued. The
second time that I took the truck to the shop; the mechanic could not
find the source of the problem.

The problem sounds like a loose serpentine belt. The noise can be
described as a loud squeaking that increases with higher RPM's. A
Google search on this noise turned up null and any thoughts as to the
source of this noise would be much appreciated.

Thank you,

Jim

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Old 09-17-2005, 20:01   #2 (permalink)
JohnR66
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Re: 2001 Ford Ranger Squeak

<jmooremba@comcast.net> wrote in message
news:1126991984.472037.67240@g44g2000cwa.googlegroups.com...
> Hello, all.
>
> I have a 2001 Ford Ranger pickup with approximately 72,000 miles and
> just this past week noticed a really bad squeaking sound coming from
> the belt area. I took the truck into the shop twice to diagnose the
> problem. The first time I took the truck into the shop the mechanic
> put belt dressing on the serpentine belt, but the noise continued. The
> second time that I took the truck to the shop; the mechanic could not
> find the source of the problem.
>
> The problem sounds like a loose serpentine belt. The noise can be
> described as a loud squeaking that increases with higher RPM's. A
> Google search on this noise turned up null and any thoughts as to the
> source of this noise would be much appreciated.
>
> Thank you,
>
> Jim
>

Were you with the mechanic when he tried it? It may work for a short while,
but when you get the car back, it gets noisy again.

Forget the belt dressing and put on a new belt and check for proper tension.
John


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Old 09-17-2005, 20:01   #3 (permalink)
Herb Stein
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Re: 2001 Ford Ranger Squeak


"JohnR66" <nospam@att.net> wrote in message
news:PD3Xe.53616$qY1.7095@bgtnsc04-news.ops.worldnet.att.net...
> <jmooremba@comcast.net> wrote in message
> news:1126991984.472037.67240@g44g2000cwa.googlegroups.com...
>> Hello, all.
>>
>> I have a 2001 Ford Ranger pickup with approximately 72,000 miles and
>> just this past week noticed a really bad squeaking sound coming from
>> the belt area. I took the truck into the shop twice to diagnose the
>> problem. The first time I took the truck into the shop the mechanic
>> put belt dressing on the serpentine belt, but the noise continued. The
>> second time that I took the truck to the shop; the mechanic could not
>> find the source of the problem.
>>
>> The problem sounds like a loose serpentine belt. The noise can be
>> described as a loud squeaking that increases with higher RPM's. A
>> Google search on this noise turned up null and any thoughts as to the
>> source of this noise would be much appreciated.
>>
>> Thank you,
>>
>> Jim
>>

> Were you with the mechanic when he tried it? It may work for a short
> while, but when you get the car back, it gets noisy again.
>
> Forget the belt dressing and put on a new belt and check for proper
> tension.
> John


The belt dressing I have says, on the container, NOT for serpentine belts.
Buy a new belt.

--
Herb Stein
herb@herbstein.com


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Old 09-17-2005, 21:01   #4 (permalink)
JimV
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Re: 2001 Ford Ranger Squeak

jmooremba@comcast.net wrote:
> Hello, all.
>
> I have a 2001 Ford Ranger pickup with approximately 72,000 miles and
> just this past week noticed a really bad squeaking sound coming from
> the belt area. I took the truck into the shop twice to diagnose the
> problem. The first time I took the truck into the shop the mechanic
> put belt dressing on the serpentine belt, but the noise continued. The
> second time that I took the truck to the shop; the mechanic could not
> find the source of the problem.
>
> The problem sounds like a loose serpentine belt. The noise can be
> described as a loud squeaking that increases with higher RPM's. A
> Google search on this noise turned up null and any thoughts as to the
> source of this noise would be much appreciated.
>
> Thank you,
>
> Jim


What idiot mechanic told you to put belt dressing on a serentine belt?
That crap doesn't even work (for long) on V belts. Spend the $20 and
change the belt. Then find a new mechanic.

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Old 09-18-2005, 11:01   #5 (permalink)
Bill M
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Re: 2001 Ford Ranger Squeak

Let me guess: The squeaking happen worst when the motor has been started
after sitting for a few hours? It's about the thermister in your
alternator, and your failing battery!

As the battery ages it gets minor internal shorts. So maybe a fifth of the
power stored in your battery can be lost while the truck is parked. What
remains is enough to crank even a cold engine. After cranking, the voltage
is down enough tenths of a volt that plenty of current can flow from the
alternator to the battery.

How much current an alternator produces depends on how much current is
flowing through it's field. The amount of current an alternator can
tolerate producing continually is a lot less than it can tolerate producing
for a short while. A thermistor can be used to limit how much current the
alternator produces after it becomes hot.

A battery that has been parked for a while can demand a lot of current after
cranking the engine, and a cold alternator can produce a lot. This puts an
increased mechanical load on the pulley. It slips, and you hear it.

Try bringing your belt in the house, and washing it in the sink with
whatever you use for dishes. While it dries, clean all of your pulleys with
a clean rag and rubbing alcohol. If you like belt dressing, apply it to
the belt while it is off of the vehicle, and let the dressing fully dry
before you put the belt back on. The old belt mates to the sheaves better
than a new one, a new belt might not help.

While the belt is off, check your idler bearing and water pump bearing.

If other things have you thinking about a new battery, get it now. Good
luck with your alternator pulley noise.

Bill M


<jmooremba@comcast.net> wrote in message
news:1126991984.472037.67240@g44g2000cwa.googlegroups.com...
> Hello, all.
>
> I have a 2001 Ford Ranger pickup with approximately 72,000 miles and
> just this past week noticed a really bad squeaking sound coming from
> the belt area.



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