2002 Chrysler Sebring Support Question
2002 Chrysler Sebring Support Question
Find answers below for this question about 2002 Chrysler Sebring.Question posted by jdecerce on October 31st, 2011
Noisy Ac Fan
2002 Chrysler Sebring convertible. AC fan works on first speed, higher settings make sound like something stuick in fan. resistor problem or mechanical?
Current Answers
Answer #1: Posted by pchelper on October 31st, 2011 5:38 AM
pchelper
Member since:
October 20th, 2011 Points: 206,890
Member since:
October 20th, 2011 Points: 206,890
It is an awful racket, isn't it?
It could be something as simple as a rock got thrown up and bent one of the fan blades and it is touching something as it goes around. Or it could be something as dire as has been mentioned, and the water pump is about to die and this noise is its funeral dirge.
If it is bent and touching something, then other than making a lot of noise, the world isn't going to end, more than likely. If you can look under the hood, and can see the path of the fan, you might want to look and see if you see any shiny spots along that path where the fan's blade is rubbing metal of the car, somewhere along the radiator, more than likely. If the radiator got pushed back into it, then you could really damage the radiator and end up with a leak of the coolant in the engine, so you would want to get it checked out.
If it is the bearing on the water pump, it is a different thing altogether. With the car OFF, look under the hood at the fan. In the middle of the fan is a cone looking object, and this is called the harmonic balancer. If you grab one of the fan blades and rock it back and forth on the harmonic balancer, you should not be able to move it. If you can, like from back to front of the car, then you probably have a water pump problem.
If either of these is the problem, I'm not sure what good cleaning something would do. It would be beyond what a little cleaning would do for it. Personally, I think (and hope as it would be the cheapest) that something is bent and is rubbing up against something else.
Bye the way, a bearing is something that separates two moving parts, and is able to take a load. In other words, that fan sits on a shaft, and that shaft goes back into the water pump. To be a little more detailed, water pump bearings incorporate a spherical outer ring raceway, with the center of the radius located on the bearing axis, providing a self-alignment capability. This bearing incorporates a 45° contact angle that enables the bearing to support large axial loads and moderate radial loads. Know any more than what you did?
Hope that this helps a little bit, and that you have a great day.
It could be something as simple as a rock got thrown up and bent one of the fan blades and it is touching something as it goes around. Or it could be something as dire as has been mentioned, and the water pump is about to die and this noise is its funeral dirge.
If it is bent and touching something, then other than making a lot of noise, the world isn't going to end, more than likely. If you can look under the hood, and can see the path of the fan, you might want to look and see if you see any shiny spots along that path where the fan's blade is rubbing metal of the car, somewhere along the radiator, more than likely. If the radiator got pushed back into it, then you could really damage the radiator and end up with a leak of the coolant in the engine, so you would want to get it checked out.
If it is the bearing on the water pump, it is a different thing altogether. With the car OFF, look under the hood at the fan. In the middle of the fan is a cone looking object, and this is called the harmonic balancer. If you grab one of the fan blades and rock it back and forth on the harmonic balancer, you should not be able to move it. If you can, like from back to front of the car, then you probably have a water pump problem.
If either of these is the problem, I'm not sure what good cleaning something would do. It would be beyond what a little cleaning would do for it. Personally, I think (and hope as it would be the cheapest) that something is bent and is rubbing up against something else.
Bye the way, a bearing is something that separates two moving parts, and is able to take a load. In other words, that fan sits on a shaft, and that shaft goes back into the water pump. To be a little more detailed, water pump bearings incorporate a spherical outer ring raceway, with the center of the radius located on the bearing axis, providing a self-alignment capability. This bearing incorporates a 45° contact angle that enables the bearing to support large axial loads and moderate radial loads. Know any more than what you did?
Hope that this helps a little bit, and that you have a great day.
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