Whine during acceleration... - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
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#1 Old 11-08-2010, 11:45 AM
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Whine during acceleration...

I've noticed a slight whine during acceleration which has seemed to have started within the last few hundred miles... is this normal? My engine has 65K on it
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#2 Old 11-08-2010, 11:58 AM
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Could be bearings or tranny or axles...

Are you 'sure' the stereo is off?

You need to pinpoint where the whine is coming from.

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#3 Old 11-08-2010, 01:08 PM
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Originally Posted by Beach Assault View Post
Could be bearings or tranny or axles...

Are you 'sure' the stereo is off?

You need to pinpoint where the whine is coming from.
Not sure about bearings, tranny, or axles.
Stereo is off.
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#4 Old 11-08-2010, 03:02 PM
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Hmmm You're from PA...Whining during acceleration... Sounds like your driving around with my wife. Just slow down, tell her you were just joking about her mother, and the whine should subside. though it will only be a temporary fix. Good Luck
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#5 Old 11-08-2010, 03:23 PM
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He's single though...haha

Does it "grind" when making turns at all?

Could be the early signs of a drive shaft U joint failure...

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#6 Old 11-08-2010, 05:10 PM
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no grinding when turning
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#7 Old 11-09-2010, 06:51 PM
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New tires?

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#8 Old 11-09-2010, 06:54 PM
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have you only noticed this whine with the heater fan going and rpms just rev over 2k? i was told this was the compressor on mine (ac is shot)... had this going for two winters now...

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#9 Old 11-09-2010, 06:56 PM
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Originally Posted by gwin99 View Post
have you only noticed this whine with the heater fan going and rpms just rev over 2k? i was told this was the compressor on mine (ac is shot)... had this going for two winters now...
No that's not happening here
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#10 Old 11-10-2010, 12:59 PM
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There are a few possibilities, the ones that come to mind (remember these are just general mentions, each situation may be different):

The A/C clutch on the compressor is slowly going out, this usually has a increasing pitched whine as the RPMs increase starting around 1K RPM.

Transmission needs a drain and refil (but not a flush unless you have done that every 10K miles already). This usually has a kind of vacuum whine sound, starts in a very narrow range, like mine does it from 1600-1900 RPM, but as it gets worse as time goes on where it typically runs from 1500-2500 RPMs.

Fan clutch starting to go, this whine starts low and slowly winds up in pitch until around 2500 RPM then stays constant, even if RPMs go higher.

Mine has had a slight vacuum/turbo type pitch to it since we bought it at 40K miles which I have found is mostly the air intake is not 100% sealed, and then a slightly different whine coming from my transmission that needs a drain and refill.

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#11 Old 11-10-2010, 01:07 PM
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Originally Posted by screwballl View Post
There are a few possibilities, the ones that come to mind (remember these are just general mentions, each situation may be different):

The A/C clutch on the compressor is slowly going out, this usually has a increasing pitched whine as the RPMs increase starting around 1K RPM.

Transmission needs a drain and refil (but not a flush unless you have done that every 10K miles already). This usually has a kind of vacuum whine sound, starts in a very narrow range, like mine does it from 1600-1900 RPM, but as it gets worse as time goes on where it typically runs from 1500-2500 RPMs.

Fan clutch starting to go, this whine starts low and slowly winds up in pitch until around 2500 RPM then stays constant, even if RPMs go higher.

Mine has had a slight vacuum/turbo type pitch to it since we bought it at 40K miles which I have found is mostly the air intake is not 100% sealed, and then a slightly different whine coming from my transmission that needs a drain and refill.
About 24K miles ago, the tranny was professionally flushed and refilled with synthetic. I will double check the air intake, but it doesn't sound like a turbo. It could be the fan clutch, but I don't think it has anything to do with the AC system as this occurs anytime, whether the AC is on or not.
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#12 Old 11-11-2010, 09:39 AM
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i think i get the same whining noise going up hills. I feel like it is a transmission noise.

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#13 Old 11-11-2010, 09:54 AM
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It might be... I'll see if it needs to be serviced when I get my tune up
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#14 Old 11-12-2010, 03:11 PM
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Quote:
Originally Posted by Dodge4L1fe View Post
About 24K miles ago, the tranny was professionally flushed and refilled with synthetic. I will double check the air intake, but it doesn't sound like a turbo. It could be the fan clutch, but I don't think it has anything to do with the AC system as this occurs anytime, whether the AC is on or not.
First, I would be curious about the synthetic... generally that is only recommended in high stress racing or drag transmissions on occasion, not everyday usage. In some cases, using anything outside of the originally recommended fluid can be cause for concern with many of these new vehicles since the late 90s. They are designed with certain specifications and fluids to work properly.

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Sometimes simply removing the entire air intake hat, checking the seal around the air filter and other seals/connecting hoses can find it.

As for the AC system, it doesn't have to be in use or turned on inside to be affected, the belt is still turning the compressor which means it still monitors and charges the system and would still be affected.

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#15 Old 11-17-2010, 06:56 PM
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rear differential pinion bearing

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Last edited by rangoneer; 12-01-2010 at 06:53 PM. Reason: specifics
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#16 Old 11-17-2010, 07:10 PM
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Well I'm not sure what the exact cause is, but I talked to another member and I found a way to fix it. I think it has to do with the fluids in the transfer case sitting in the cold weather. When I started up the D, I let it warm up a little bit and right before I put it in drive, I let it sit in neutral for a few seconds so the fluids cycle through the transfer case.
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#17 Old 12-01-2010, 06:53 PM
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any update?

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#18 Old 12-01-2010, 06:57 PM
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Originally Posted by rangoneer View Post
any update?
Check the post above yours...

It seems to go away once the vehicle has warmed up to normal running temp

Also, I haven't noticed the "whine" as much lately
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#19 Old 12-01-2010, 07:09 PM
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yeah, I read that. Doesn't really seem like a "fix".
Does the transmission engage normally regardless of warm up?

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#20 Old 12-01-2010, 07:12 PM
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yes
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