Question about 2000 Ford Expedition

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Pumps up to tight, compressor makes loud noise and rides rough

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  • Ford Master
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Ride Height Sensor could be bad and compressor is not shutting off at correct level and over pumping may be causing it to be loud or the dryer is also a problem and allowing moisture into system. Disconnecting the lride height sensor to see if it shutting system off and on when lifted or lowered position will tell you if the sensor is not working properly. They do tend to go out and create issues.

Posted on Nov 12, 2009

  • Alvin Arquines Nov 29, 2011

    My truck don't have the Air Suspension

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Engine making loud noise when running I removed the serpentine belt and stop?


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Bad oil pump ?


Turn your A/C off, the compressor can make noise if bearings are dry or system is low on compressor oil.
Remove your serpentine belt. Turn pulleys by hand to check for roughness. Bearings in those pulleys routinely go bad.
You may get computer warnings with the following test, but with serpentine belt removed, run engine for 2 or 3 minutes. Do this on a warm engine after serpentine belt is removed. The warm oil will not mask the problem like cold thick oil can. Noise generated means problem is internal.
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I have a screeching noise when I start my air conditioning.


It could be but how easy was the belt tensioner ? that may be the problem by not putting enough tension on the belt. How tight is the belt ?

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NEW AC COMPRESSOR MAKING NOISE


Did you add the correct amount of oil to the compressor? Is it overcharged? Did you evacuate all the air with a vacuum pump before charging? Was the fixed orifice replaced? If you are sure you did the install right and the oil and charge are correct you have another defective compressor

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My belt is making a whistling screeching noise. i used belt conditioner and soap both makes it go away as soon as applied but it keeps coming back.


If you have changed the belt I would take it off to see if any of the bearings in a pulley may be going out.You can do this by spinning the pulleys on everything. Spin the water pump,the alt,air compressor. See if they make noise or feel rough while spinning them by hand. Replace whats bad.

Oct 13, 2010 | 1989 Ford F 150

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The air compressor is making a loud noise and the "shop" tells me i need to replace the compressor because all the belts need it. I don't need the a/c, which doesn't seem to matter with this repair. Do I...


usualy the front berring goes out of those and yes it is loud. just find one off a low milage vehical at a junkyard have it installed just dont have it charged or pluged in than the pully will be there for the belt to ride on but the air conditioning will not work. a used one will save a lot of money. charging the system is also very expensive. but all in all yes you need it becaus the one belt runs power steering altinator a/c watter pump.

Aug 24, 2009 | 1996 Dodge Caravan

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Loud buzzing noise


From the sounds of it, it's simply your air ride's compressor. If you're not aware that your vehicle has air ride suspension, read up on the user's manual or look on the web. When you start your vehicle and shift into drive or reverse, your compressor should start (assuming no doors are ajar). The compressor than fills all four airbags in your vehicle to a factory-set height. These airbags provide a softer ride than the conventional shock/strut system seen in less expensive SUV's and trucks but are also more prone to problems and damage down the line. You can isolate the compressor as the sound by going to your truck, removing the left hand side panel and switching your air ride off. Your car's compressor then should not kick in at all. However, you should not operate your vehicle with this switch turned off. You should only use it as a diagnostic reference or anytime your car is towed, hoisted, or jacked up. Hope this helps.

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Hi Friends, I just bought a lincoln navigator 1998 and it makes a rough intrmittent sound as if it is coming from the engine or fan. It sounds like a tractor and all of a sudden it becomes normal .please...


if it makes the noise when you first start and then goes away It is probably the air suspension pump coming on like normal. These pumps have a tendency to be noisy. if there is no noticable problem with the suspension except for the noise I wouldn't worry about unless the noise bothers you.It is about a $500 repair

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1 Answer

LOUD!! SQUEALING NOISE ,UP NEAR FRONT OF MOTOR ?


well also it could be your a/c compressor

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