I went too california this week first major road trip and found that my truck had a rather PRONOUNCED vibration @ 72 MPH (where it was the loudest), in between 65 and 70 it was really quiet, but after 70 the vibration got louder and didnt start too quiet down till I passed 75<br><br>Anybody else encountered this (HO or SO) Owners ???

 

I just came back from a road trip to Michigan and I had noticed the same vibration. From threads in the past, I think it has something to do with the exhaust. I am not an expert, but I remeber reading about something like that from some one else. To fix the problem, I just went faster. ;D

 

I want to add something to my post, I wouldn't say so much as a vibration, but more of a rumble, which could be easily mistaken for a vibration. After reading some more threads about others who have experienced this, it is just the nature of the beast. I went form a small V8 gaser to this beast, and I am still trying to get used to the growls under the hood. I just can't say enough about these CTDs, they are worth everything I paid for it. Smooth, powerful, economic and they sound good!!!!

 

No complaining about the truck mind ya <br>If that s just the nature of the beast then, cool....I can live with that.....<br><br>If I didnt know better though it almost feels like a drivline SLIGHTLY out of balance...but then Im no expert and my dealer thinks Im too particular for my own good (well not in so many words) <br><br>

 

I have a vibration at around 2000Rpm or 68 MPH. Get above 70 or down around 65 and it goes away. Turn off the AC and it goes away.<br><br>Of course the dealer can't duplicate it, so until they do I'm hallucinating. <br><br>I also have a vibe in the gas pedal. It is very slight and will only stop if I put my toe under it and just lift slightly. I looked at the pedal and it is hinged with a large rivet. Seems this is where is must be vibrating from.

 

[quote author=mymaur link=board=20;threadid=15346;start=0#146226 date=1054858836]<br>I have a vibration at around 2000Rpm or 68 MPH. Get above 70 or down around 65 and it goes away. [/quote]<br><br>I have the same thing on mine, it's not a vibration but a growl. I have driven a couple of friends trucks that are the old body style HO/6spd and haven't noticed it. Maybe it has been there the whole time and these new trucks are quiet enough that you can now hear it. ???

 

I have the same noise. It is loudest between 2000 and 2200 rpm. I notice it when I am going through the gears no mater how fast I am going.

 

Same here. I'd swear it is the exhaust but others say it will go away as it breaks in. Whatever it is it doesn't seem like a major problem so I'm just letting it be for now. I have to say I'm glad I'm not the only one with it.

 

I have this, and I can tell you that it is NOT from the exhaust. It is from the driveline because I can feel it in my steering wheel. It starts at 70mph and stays there from 70mph and up. I can feel the vibration lessen as I lower the RPM's to below 2000. It will be going back to the dealer after I get the 500 miles on her, as I know that this is not right.

 

[quote author=angleiron link=board=20;threadid=15346;start=0#147292 date=1055161214]<br>I have this, and I can tell you that it is NOT from the exhaust. It is from the driveline because I can feel it in my steering wheel. It starts at 70mph and stays there from 70mph and up. I can feel the vibration lessen as I lower the RPM's to below 2000. It will be going back to the dealer after I get the 500 miles on her, as I know that this is not right.<br>[/quote]<br><br>I think you are correct; it is NOT right. I have no such rumble or vibration in mine at all, and haven't had since I took delivery. I payed particular attention for it this weekend after reading the other posts here last Friday, and none on my truck. It feels smooth, just like when I first got it. It almost sounds like a slightly dry or misaligned driveshaft bearing.

 

My first two 03's did it, but my new HO/48re doesn't. I haven't had any customers complain about it ??? :

 

Yeh,<br><br>I am also getting a steering wheel vibation and movement, the most from 60-70 almost like an out of bal. tire???<br>For the first second or two after takeoff i am getting a slight vibration as if the pinion angle was off a little .??<br>Anyone else?<br>Lastly 20-50 i get what feels to me like a hop, as in a light back end.<br><br>Thanks,<br>Bill

 

[quote author=vince1 link=board=20;threadid=15346;start=0#149616 date=1055729781]
Yeh,

I am also getting a steering wheel vibation and movement, the most from 60-70 almost like an out of bal. tire???
For the first second or two after takeoff i am getting a slight vibration as if the pinion angle was off a little .??
Anyone else?
Lastly 20-50 i get what feels to me like a hop, as in a light back end.

Thanks,
Bill
[/quote]

My 99 does the same hop thing, &amp; shakes the truck @ those highway speeds not in the wheels though, &amp; no vibration at take off.

DRecu

 

I have had my HO 6sp for less than a week and it seemed very smooth at first but coming down the Cascades it started vibrating at 2000 rpm. 200 rpm either side and it smoothed out. I was freaking out last night until I read this post. I hope it isn't anything serious as I noticed my oil pressure is just above 20 at idle and goes above 40 at speed which seems low according to everyone elses. ???