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Engine suddenly got louder while driving

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  #1  
Old 02-28-2008, 01:07 AM
wzs10 wzs10 is offline
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Default Engine suddenly got louder while driving

The engine noise from my 2000 Durango suddenly got louder while I was driving on the interstate at about 70 mph. I thought it might have been from the cold weather, but I had been driving for about 20 mins and the engine was warm. The check engine light didn't come on, and it continued to shift gears as normal all the way home, the car was just a lot louder. Any suggestions???
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  #2  
Old 02-28-2008, 01:54 AM
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deerang deerang is offline
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Default RE: Engine suddenly got louder while driving

does it sound like the engie is roaring? Like a loud fan noise? If so thats your fan clutch seized up... with the engine off, try to spin the fan thats connected tothe engine via a belt... it should spin rather freely...

A seized fan clutch will really hurt your fuel mileage, and thats about it... it may put some extra strain on your accessories belt, so if its old it may break, but thats about all I can think of...

if this isnt the case, give us a more descriptive sound, as well as the engine size in your Durango...

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Old 02-28-2008, 11:20 AM
OneBadKota OneBadKota is offline
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Default RE: Engine suddenly got louder while driving

If it is the clutch fan and you also have the electrical fan(s), you can just remove it and keep it off. The electrical fan will keep it cool.

.02
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Old 02-28-2008, 06:53 PM
n8ech n8ech is offline
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Default RE: Engine suddenly got louder while driving

[If it is the clutch fan and you also have the electrical fan(s), you can just remove it and keep it off. The electrical fan will keep it cool.]

.02

Onebadkota:

This is not accurate advice. The electric helper fan(on the Durango anyway) is there to supplement the mechanical fan when the A/C is on, and when it is super hot out.

By removing the mechanical fan, you will overheat when stopped in traffic and at slow speeds. You would have to run the A/C all the time to have the electric fan operate.

IIRC, the helper fan did not come about till the 00 model year.

Don


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Old 03-02-2008, 11:51 AM
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Default RE: Engine suddenly got louder while driving

yea the helper fan is on the durangos w/ the 4/7 i thinkg and if its not the clutch fan when that happened to me on my old truck the after-cat o2 sensor had fallen out so maybe check the exhaust for leaks??
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Old 03-02-2008, 03:25 PM
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Default RE: Engine suddenly got louder while driving

What about just a plain old exhaust gasket?

There are plenty of other things that it could be. First lets get the model, year, engine, and what ever that could help this problem.

I think a lot of us tend to jump on problems without the proper info. This can lead to excessive parts, time, and money. This is why we are all here right?
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Old 03-02-2008, 03:39 PM
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Default RE: Engine suddenly got louder while driving

lets just hope the OP remembered about this forum...
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Old 11-02-2011, 08:52 PM
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Sorry to bring up such an old thread, but I have a 2006 Dodge Durango that is doing this exact problem. When starting it and driving it for just a few minutes, it's nice and quiet. After about 5 minutes the engine gets really loud (sounds like bus/18 wheeler/ - like some monster engine).

If anyone has any ideas on what this may be, I'll be keeping my eye on this thread regularly to answer questions.

Thanks in advance.
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Old 11-02-2011, 09:54 PM
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What engine do you have in your D?
I have the same roar coming from my 98 5.9L...I was wondering why it sounded like an SC engine...lol I guess Ill look into that-anyone know if there is a DIY for replacing the clutch on the fan?
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Old 11-02-2011, 10:33 PM
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Quote:
Originally Posted by treas View Post
Sorry to bring up such an old thread, but I have a 2006 Dodge Durango that is doing this exact problem. When starting it and driving it for just a few minutes, it's nice and quiet. After about 5 minutes the engine gets really loud (sounds like bus/18 wheeler/ - like some monster engine).

If anyone has any ideas on what this may be, I'll be keeping my eye on this thread regularly to answer questions.

Thanks in advance.
A 2006 is a 2nd gen durango, please start a new thread there you will get better advice there. If you don't know how PM one of the moderators and they will help you. Good luck.
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Old 11-03-2011, 12:42 AM
greasydriveway greasydriveway is offline
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Hey guys. I don't think my electric fan is coming on. I put a little white out on one of the blades to see if it's been moving, tested it with the AC on, no movement(the AC don't work anyway). It hasn't gotten anywhere near overheated. Am I to understand that driving without a functioning electric fan in the winter time isn't the worst thing in the world? Should I be in a BIG hurry to fix the fan?
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Old 11-03-2011, 11:37 AM
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the electric fan only runs when the a/c is on or when the engine overheats, otherwise it doesnt run, so you will be perfectly fine except in the hottest summer days when sitting in traffic
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Old 11-03-2011, 07:32 PM
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Sorry. Thanks.
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Old 11-03-2011, 10:28 PM
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Wait...how do you know for sure your fan clutch is going out? My engine bay is loud like a 747...but I also havn't changed the diff fluid yet so...
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Old 11-03-2011, 11:22 PM
brhodes brhodes is offline
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A sudden noise level increase? I haven't read the entire thread (my apologies), but has anyone suggested it might be an exhaust leak? Exhaust pipes crack all the time (I have two sitting in my yard that I need to weld up that prove this) and if it's a slight crack, it can be a little hard to tell exactly what it is at first. I can't think of anything else that would cause a sudden noise increase that wouldn't affect the performance in some way.
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Old 11-04-2011, 05:26 PM
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Greasy<---- Replace the fan or check connections. Don't let that motor get hot! Get if fixed ASAP.

Roller<---- If it goes away after about a few blocks on cold start then it is acting fine, but if it is locked up all the time then replace the clutch.
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Old 11-04-2011, 07:37 PM
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I use the block heater during the day, so when after work when I leave I am at 140ish...so by the time I get home(4 miles) I am all warmed up and it still sounds like a 747. When you turn the fan should it spin freely with the engine off? Mine turns mabey a 1/4 turn then stops, feels like it is tight.
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Old 11-04-2011, 09:45 PM
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yours sounds correct to me, any more than 1/2 a turn is too much and if it doesnt spin at all once you let go of it its siezed but yours sounds to be about right, (maybe just a hair loose, but not enough to worry about)
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Old 11-05-2011, 12:21 AM
Compactc9 Compactc9 is offline
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1/4 turn is about what I get with mine, and it ROARS, but I do know for a fact that mine came with the HD service package, so it has the heavy duty fan clutch.
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Old 11-05-2011, 02:22 PM
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I think you need to replace the clutch fan personally. When cold it should only stay on for a few blocks if anything. There is 2 fans to chose from when you go to the store. There is a heavy duty, and standard.

The difference is the heavy duty will stay on longer and is really meant for people that tow a lot and is for heavy duty use, not the fact of it being the cooling package or not. A standard will do just fine in your rig if you use it under normal conditions and towing and such.
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Old 11-05-2011, 02:22 PM
 
 
 
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