Question about 1998 Ford F150 Regular Cab

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The ac is making a metal on metal sound when the triangular piece in the front stops it about to go? i figure the trangular piece is some sort of clutch,thought im not there anything i can do to stop the noise until it goes?

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  • Richard Scordino May 11, 2010

    Clutch is failing. You can have it replaced or replace the pump and clutch together...nothing you really can do in the interim though.



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The bearing is gone, have it replace

Posted on Jul 30, 2009


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2007 Chevy Silverado making a metallic noise on the right front have changed pulleys and belts cannot find it any ideals does not change when you rev engine up

check and make sure your harmonic balancer is still in one piece, sometimes this rubber comes free and just spins to make that noise.

May 29, 2017 | Chevrolet Silverado Cars & Trucks

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I have a 99chevy lumina 3.1 6cylinder the a.c. is not getting cold last yr worked great it's just blowing hot air

Can you do a quick observation for me and reply - you can probably do it by yourself - sit in the car with the vehicle running - no radio, etc. and leave the ac off. Once it's idled down and running smoothly, turn your ac on to low - low will keep the fan noise down.

When you turn your ac on - do you hear like a single 'click' and does the motor sound as if it's a little more strained than it was before you turned the ac on? Your compressor (I'll attach a pic) has a 'clutch' on the outside of it - when you turn your ac on, that clutch needs to engage - that's the click sound. Your engine will usually sound like it's under a small amount of strain. Which is normal.

When you turn it off - you should hear that same click, maybe not as predominantly - but the engine should feel as if it's no longer under that strain. This will tell me if your ac compressor's clutch is engaging or not.

We can go from there - all the best, hope it's an easy fix - summer's here without a doubt.

Mary - that part on the front, on front of the assembly - that's your clutch for your ac compressor - this is just a reference - if you stand outside the car and watch - when the car is running but your ac is off, the pulley spins - but that piece with the triangle will not spin with it. When you turn the ac on - that piece on front of the pulley 'engages', makes a click sound - and spins also. That's the clutch - and the assembly in the picture is an ac compressor.



The top pic the clutch is engaged - the bottom pic - this assembly is a little different - but these give you an idea of where to look if you can visually observe. Your belt will go around the ac compressor just like the power steering pump, alternator, etc.


All the best, I'll keep an eye out for a reply - Justin McCartney
17 South Industries

Jul 01, 2016 | Cars & Trucks

2 Answers

My car chirps while increasing speed and when I brake my vehicle.

It is possible that the broken tab is your problem because the tabs keep the hardware from moving, especially when you apply the brakes. To determine if this is the case, remove the tire,brake caliper, brake pads, and hardware. Put one of the lug nuts(or two if needed) back on to hold the rotor in place. Spin the rotor by hand and listen for that chirping sound. If you don't hear it, the hardware is the problem. If you can still hear it, check that metal plate that protects the back side of the rotor to make sure its not bent and rubbing against rotor. Also check that nothing is rubbing on the trans-axle(if its front-wheel drive). If all is well in these two places, the only thing left that spins in that area is the wheel bearing. They usually make more of a grinding or roaring sound but sounds can be tricky.. I am a mechanic for a car rental company and often have to diagnose problems by the sound they make. I hope this info is helpful.

Jan 17, 2016 | 2003 Buick LeSabre

1 Answer

Light thumping sound when turning,could this be brakes

Could be universal joints, struts, or wheel bearings too! Get underneath your car, put your front end on Jack-Stands for safety, and grab hold of the tie-rods and check for movement up and down. If they seem tight, do the same with your front struts... it's movement your looking for. Spin the front wheels with the wheel covers off and listen for noise. They should spin freely. Brakes usually make a scraping sound... metal to metal. Any thumping when you brake hard... like a panic stop is normal. The ABS brakes are supposed to do this.

Mar 21, 2015 | 1998 Ford Escort

2 Answers

Any advice on why my saab 93 smokes when hot and stationary

If it is smoking in the engine bay, check the PCV nipple. Stand in front of the car with bonnet open, and with the (rougly) trangular cover that is placed around the motor oil cap removed, look at the Valve cover - the black metallic engine part that says SAAB on it. On the left side of the farthest edge of the valve cover, there is a rubber piece that allows venting through a rubber hose. 46c4478f-2089-4631-9485-738202997749.jpg
If this is cracked or missing, you will see and smell smoke. This nipple/grommet needs to be replaced. What is called a PCV update should be performed - yo can DIY it through a web search. The parts all together cost about $70 or so.

Good luck!

Sep 22, 2013 | Saab 9 3 Cars & Trucks

1 Answer

I have a 2003 Honda Pilot, that is leaking oil?? and I can't find where it is leaking from. It is all over the wheel well of the driver's side and all over the underbody. I looked under the car just behind...

Hello my name is Landon

The rough metal pan looking think is your oil pan this holds oil under the engine block. The piece you are missing is the cap i would get a new cap or check the oil pan to make sure it is tight on and no lose bolts also check for cracks.



Apr 16, 2017 | 2003 Honda Pilot

4 Answers

I have a 2001 dodge caravan, We have a noise coming from the alternator pully, I think or the tension pully, The noise is very loud and kinda sounds like a gragle.

there are a few things you can do to check this ,it sounds like a bearing from the alternator . it is behind the pully ,or the bearing on the tensioner .you can take the serpentine belt of the alternator by usint a pry bar or a ratchet on the belt tensioner .you can check both by spinning them when ther is no pressure on them the one that makes the same noise sound is the bad one ,there is a diagram on the front hood on how to remove and replace the serpiene belt

Nov 19, 2009 | 2001 Dodge Caravan

1 Answer

Harmonic Balancer issue

sounds like your balancer may have come apart. it shouldn't move at all. to move it you have to make the crankshft turn. i had this happen on a truck once. it made some strange noises, then it started vibrating pretty bad. i shut it off, took me a while to figure out what it was. most of them are actually 2 piece and have a key slot, (a grove cut in both pieces that a piece of metal sits in to keep them turning at the same time). it sounds to me like you need to replace it. it can take some serious effort & tools to replace.

Aug 24, 2009 | 2007 Cadillac CTS 3.6L

1 Answer

Screeching noise, then a/c stops blowing cold air. Still blows air, just not cold air.

it could be the air conditioning clutch going out. to check turn your car on and idle it with ac on and hood open. at the ac compressor it will have a pulley on it with a clutch that engages when the air conditioning is on. if it engages and disengages it can be the clutch itself has gone bad, the ac clutch will also disengage if there is not enough freon in the ac system, will also engage and disengage if the pressure gets too high in the ac system. Depending on the year of the vehicle it will disengage at full throttle and come back on when you are not at full throttle.
If it is a metallic sounding screech for example take a coke can and drag it across pavement kind of sound it could be a bad compressor or a bad ac clutch. If it is a more rubbery sound for example a car spinning its tires kind of noise it could be a loose belt.

1. Check to make sure all belts are tight under hood
2. start car and look at ac compressor to make sure compressor pulley is turning and that the fan clutch is engaged spinning

Aug 09, 2008 | Mercedes-Benz 400-Class Cars & Trucks

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