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2000 Ford Explorer - squealing noise

(2000 Ford Explorer)
in Manassas, VA on April 02, 2010
My 2000 Ford Explorer makes a squealing noise as soon as I start the engine. Had my oil changed and said they thought it had something to do with the power steering pulley system. Any thoughts? What can I expect in the way of repair costs?
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Popular Answer
on April 03, 2010
It is hard to answer if i haven't actually seen it, but there are a few general rules about a car squealing like this. First of all, it IS a problem with a belt (usually the serpentine belt), something the belt is attached to (i.e. the power steering pump, alternator, tensioner, etc...), or a problem with the belt being simply just too loose.
Repair costs: if it is just a belt that is too loose- $5.00.
: if it is the power steering pump- $250.00-$500.00
: if it is the is the A/C compressor- $300.00-$500.00
: if it is the tensioner- probably around $75.00 to $100.00
Hard to speculate without hearing and seeing the problem first hand. The alignment of the belt and pulleys should not change unless the tensioner fails or the pump is worn allowing the pump shaft to wobble in and out in the pump. HAve the problem checked by a repair shop knowledgeable with Ford products but this problem should be real simple to diagnose by any compliant mechanic.
on April 04, 2016
I had the same problem with my 2000 Ford Explorer 4.0L V-6 SOCH engine. I had a very costly, having three different auto shops search for the source of the noise, replacing various parts, but nothing seemed to work. No one thought to first check for the noise with the serpentine belt removed.

This mistake cost me over $700 before the actual problem was discovered. So, before you replace anything:

First check the location of the squealing noise, (front of the engine, or the back of the engine). To do this, remove the serpentine belt and start the engine, check that the noise is no longer present. If this is the case, then the source of noise is either the belt or an accessory driven by the belt on the front of the engine. If the noise is still present after removal of the belt, then then the source of noise is coming from the back of the engine. If the chirping sound is coming from the rear of the motor, then it's the camshaft synchronizer.

Replacing the Camshaft Synchronizer may be very simple and you can easily do it yourself with basic tools and you have enough time, usually 3 to 4 hours. You may have to remove the intake manifold in order to properly reach the synchronizer, so be sure to purchase a ne intake manifold gasket as well. A new Camshaft Synchronizer is either $80 from RockAuto, or $160 from Ford. Don't get the non Motorcraft Cam Syncs because they have a high failure rate.
As I do not have the time to do the work, I purchased the parts and had a reputable garage do the work for me for a total cost of $304.98. Problem resolved.

If it is your camshaft synchronizer, don't delay getting it repaired as soon as possible because there is a possibility of oil pressure loss and blowing the motor if the camshaft synchronizer catastrophically fails.

I hope that this is of help to you.

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