***UPDATE***

Employed a little redneck engineering, from suggestions from a few guys
here on DTR. I gave up on getting the PS hose TSB, just used cable ties and the buzz is
GONE !! Its like a different truck. I didn't know they were this quiet.

* Strapped both hydraulic lines together in about 6 places.
* Strapped both to the neg battery cable.
* No more buzz @ 2000 RPM,, HUGE REDUCTION in cab noise.
* No more cruise control fluctuation @ 2000 RPM.
* No more buzz through the go pedal.
* No thanks to the DEALER.
* MANY THANKS TO DTR AND YOUR REPLIES....

 

do I need to say how dumb I feel for not doing this sooner ?..

 

NO,,,,,,,,,, if I don't do something like this at least once a week,,,,,,,,,,,, something is very wrong! Glad you found a fix.

 

It's amazing how such a small thing can affect the noise in the cab and the overall feeling of the truck on the road. I'm going to have to go do this now. I don't know why I haven't done it sooner either, but I'm going to do it today!

 

3:36 AM...?

Why don't you wait until daylight so you can see it better.

 

I also saw a kit from rokktech.com that puts weights on several lines and some rubber washers on some mounts. They tell me it is 1 hour installation time and almost completely eliminates the vibration. $59.95 plus shipping. I personally made my own weight to fix my truck. I tried zip tying the lines together and it helped but the vibration was still there. I still notice more vibration with the A/C on but I can live with it. I have been complaining to DC about the vibration and trying to get them to include our trucks in the TSB with absolutely no success.

 

Any ideas where the rubber washers in the kit might be used ??

 

HOUTEX,
I did the tie wrap mod for the hydroboost lines right after I bought my truck. The mod did help in reducing the vibes in the steering wheel. But last year my hydroboost line let go (crossthreaded at the p/s pump) which gave me a free rust proofing job in the engine compartment and under carriage.
The dealer installed a new p/s pump and the updated hoses and it helped even more.

MikeyB

 

What was the problem that you corrected?

 

Never mind: I found it in your later post.