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  #21  
Old 02-20-2014, 07:26 PM
mahanoy1 mahanoy1 is offline
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I noticed the sound 15 minutes after I left the dealership. Went right back and they pulled it into the garage. First they ran the truck without the belt and it still made the noise so they ruled out pulleys and accesories. Next they listened with the scope and stated that the noise is loudest on the y pipe so they changed the y pipe and cats and it still made the sound, so they the went ahead and changed the front rear main seal and that did not change the sound. Transmission issue has ben ruled out as aamco disconected the transmission from te engin so that rud out torque convertor and trans pump. The nois does not appar at all for the first ten minutes or so but then apears once the vehicle reaches its full operating temperature. The noise doesnt appear to change in pitch much ith only a slight change hen the engine is reved up a little. I was thinkin oil pump but the noise isnt in the front its more noticeable in the back side undearneath. someone else is saying could be in the valve train like a valve guide. I am lost on this problem.
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  #22  
Old 02-20-2014, 08:47 PM
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easy e easy e is offline
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My bad. I assumed your were mechanically inclined and was checking all of this yourself.

I think the issue may have to do with the exhaust manifold. A common issue is the exhaust manifold studs/bolts breaking or working themselves loose.

You will want at least a smoke test done, especially after the truck has warmed up and the noise is present. If they don't find anything I would ask them to put a wrench on every exhaust manifold bolt to see if any are broken or loose.

Before your y-pipe and cat were replaced did you have an aftermarket exhaust installed?
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  #23  
Old 02-20-2014, 09:00 PM
mahanoy1 mahanoy1 is offline
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I belive its factory exhaust, I only had the truck 30 minutes before i noticed the sound and went right back to the dealership with it.I will have the garage check the exhaust and smoke test it like you said. Maybe I should put a flow master on to drown out the sound lol

Last edited by mahanoy1; 02-20-2014 at 09:03 PM.
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  #24  
Old 03-01-2014, 07:10 PM
mahanoy1 mahanoy1 is offline
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Well had the entire exhaust sysem checked and tested and the sound is not exhaust related. Whatever it is must be engine related.
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  #25  
Old 03-02-2014, 11:12 AM
moparphilip383 moparphilip383 is offline
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Any change when you disconnect the negative battery terminal for five minutes and then restart?

A lot things are voltage related in issues. How fresh is the battery? Check cells and voltage between them. Battery should be even with 13+ volts total.

These trucks should throw codes when the slightest thing is off. Has the ECU been tuned or manipulated by others? Can you use a scan gage to determine MAP pressures, and Fuel pressures and or see if pending codes are available.
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  #26  
Old 03-02-2014, 11:40 AM
Slitherbeast Slitherbeast is offline
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Change the oil and filter. The viper engine is known to whine with the wrong filter. cheap step... put some good synthetic it it.
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  #27  
Old 03-02-2014, 08:48 PM
mahanoy1 mahanoy1 is offline
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I had a new battery installed the other day cause the old one was only putting out 330cca, no change, there are no codes stored in the computer either. I belive the dealer flashed the computer when it was in. What type oil and filter do you reccomend?
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  #28  
Old 03-03-2014, 08:47 AM
moparphilip383 moparphilip383 is offline
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I would still check the new battery. Most batteries are stored dead and then quick charged on the vehicle. However, since alternators only put out say 60 amps an hour you would have to drive you ram 10-12 hours to get a full charge, and thats not including juice to your accessories.

As far as oil I always run Pennzoil full synthetic 5W-20. Summer time with the truck loaded for long hauls I'll up it to 5W-30. The oil should be 5 weight though. The filter I tend to use STP or Fram. I read an article that the two are the best and from the last time I was in Autozone I observed metal flakes in 80% of the stocked Bosch filters, like it wasn't cleaned after machining the threads. Some of the Fram looked like the canister warped or crushed the cartrige when they were pressed together. Which sucks because I was always loyal to bosche and fram.

These days I buy my filters in gross from Summit and my oil from Wal-mart. There jugs of full synthetic are $25.00 and at Oriellys or Autozone about 45.00. Summit will alway demand higher quality in manufactured parts versus the chain stores recieving defects.

Side note. My truck wasted its rear gear sometime back under warrenty. The question was raised that I never changed the rear gear fluid. When I was at the dealer I called autozone to see if they had my record of purchaseing Lucas gear oil about two months prior and they said no. I called summit and the said yes from over two years prior. Summit then faxed the reciept to my dealer and it was then submitted to chysler under warrenty that day. Which saved me from running.

I would be patient with the noise, even though I am sure its like a festering splinter. I would just keep trying to isolate it in the engine. If it doesn't increase or decrease with RPMS then you know its not rotating parts versus secondary components. Worse case senerio just tell everyone it the supercharger making that noise.
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  #29  
Old 05-07-2014, 08:36 PM
gbzausa gbzausa is offline
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Hi did you ever resolve this problem ?
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  #30  
Old 06-05-2014, 12:35 AM
bikertodd bikertodd is offline
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Im having the same problem, have you found out what it is?

Last edited by bikertodd; 06-05-2014 at 12:58 AM.
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