Noisy 01 Ram 3500 5.9L - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 8 (permalink) Old 12-22-2011, 04:52 AM Thread Starter
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Noisy 01 Ram 3500 5.9L

I picked up a 2001 Dodge Ram 3500 w/ 61k miles avg 14mpg the end of June 2011. This is my first diesel and didn't really know what to expect as far as the level of noise the engine should or should not make... I've had several friends make comments about the old school bus showing up. It is loud enough that if I try to talk to someone standing outside from the cab, I have to shut down the engine...
I know description lacks actually hearing... but any suggestions or ideas appreciated.
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post #2 of 8 (permalink) Old 12-22-2011, 12:50 PM
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First thing that comes to mind is what mod's does your truck have?

A performance box will give the engine a timing knock so to say making it louder.

A true 4 inch turbo back exhaust may or may not change the exhaust sound that will depend on the muffler.

Your air cleaner will make a difference, seams hard to belive but it does.

Valve lash.

Did the previous owner pull out the turbo silencer ring that will make a difference.

S.O. or H.O. engine?

Are you starting to get the point.
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post #3 of 8 (permalink) Old 12-23-2011, 02:29 AM Thread Starter
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To my knowledge the only mods to the truck are a K&N Air Element in the stock airbox and an exhaust break.
I tried to upload an audio recording of the engine and exhaust but the site would not accept it... But I did include some photos of the engine and truck.

Since the truck is 10 years old and apparently sat in the previous owners garage quiet alot since the mileage was 61K when I got it, didn't know if the injectors could have problems or something...

I am looking at installing a Banks PowerPack System 4" exhaust and Banks Exhaust Break in hopes of increasing the mpg.

Just thought I might pick a few brains before I take it by local Cummins shop.

S.O or H.O. ok showing my ignorance, how do I determine that?
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post #4 of 8 (permalink) Old 12-23-2011, 06:50 PM
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You do know the exhaust brake will not help mileage, A performance box can help fuel economy. Just drive it normal. The 4 inch turbo back exhaust will help, Banks sells good stuff but for me it cost too much.

S.O. Standard Output

H.O. High Output

The biggest difference is S.O. has a 16.3 to 1 Compression ratio and a H.O. has a 17.5 to 1. The S.O. will respond better to performance add on's and a H.O. will have more torque low in the RPM band.

The noise issue, well that maybe just the way the truck is, or a galled piston would make a clicking sound.

What are you planning on using the truck for?
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post #5 of 8 (permalink) Old 12-23-2011, 09:23 PM Thread Starter
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My plans are to purchase a 32-42' fifth wheel or gooseneck travel trailer. In addition, I am planning to run hotshot on the weekends to make some extra money with the pickup and 28 + 5 gooseneck trailer.

I've noticed that the overall engine sound is louder after it is at operating temp... After the first of the year I am planning to take the truck in and have the valves checked/adjusted and test the fuel system. I'm probably making more out of it than there is there, but I am planning to drive it for a very long time an want to make sure all is in proper order to do so. Am planning to get my $16,000 and more out of it...

Thanks,
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post #6 of 8 (permalink) Old 12-23-2011, 09:41 PM
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Do you have a automatic or standard (5 or 6 speed) and what rear end gears?

And what fuel transfer system?

Never mind I can see the dipstick for the Automatic. If you really want to pull that much with a automatic you will need it built. And that will cost.

Last edited by later; 12-23-2011 at 09:43 PM.
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post #7 of 8 (permalink) Old 12-24-2011, 03:36 AM Thread Starter
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6 Speed Manual trans... by my calculations Im thinking 410 differential. (turns around 21-2200rpm at 65ish...

Fuel transfer - all stock.
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post #8 of 8 (permalink) Old 12-24-2011, 02:50 PM
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You may have a H.O. engine with a 6 speed. That would be a little louder.
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