Check for exhaust making contact with the frame or the underside of the body or bed, especially between the transmission and the body. Did you install the muffler?

 

Exhaust was hitting the cross member and that helped. There is still a humming sound coming from the drive train somewhere and I think its the carrier bearing, The drive shaft has a ton of play right there.

 

This may be a good time to take the whole driveshaft to a driveline shop and have them check it out and balance it.

 

The E99 with it 15* HPOP is weak to begin with and T500 with even stock AB injectors will wake it up. The T500 was one of the best upgrades I have done with my E99. I run stock AB's and stock tunes. Like Frank said it really bumps the pressure up. I don't have AE but PitCrew ran AE on my truck couple years ago and at WOT I was 2800psi to 3000psi with stock tunes.

Good seeing ya Frank !! I hope all is well with you, the dog and truck. I'm sorry I don't recall what wheel you were running. Are you running a 9 blade? The AC's are on my wish list.

Have you ever retorqued or checked the torque on your injectors? Humming noise and 6 sp I would think throw out bearing maybe??

Also there is one other weakness with the E99 and that is the IDM. Upgrading to a 120v IDM or to a Swamps 140v IDM.
The Swamps 140v is on my wish list.

 

Im running a stock late 99 wheel. I'd have to look to see if it's a 9 blade. Can't recall.
The only change I can recall with the IDM was a different sound starting/ idling and a crisper throttle response. (Maybe it's all in my head?)
The AC's feel like stock injectors until you're pulling a load or at higher rpm's (highways speeds). Then you can really feel the difference.

All of my mods were done for reliable pulling power, not dyno numbers.
I don't regret any of them. Eventually I'll upgrade the turbo to late 99+ When the pay checks improve...

 

Yea it sounds like the driveshaft and carrier bearing could use some love. LOL But instead of chasing a vibration or noises I would (if you can afford too) pull the driveshafts replace ALL u joints and carrier bearing and most importantly have it balanced. It might hurt a little in your pocket book but down the road you will be glad you did.
When you butt dyno tells you that all is good for many years to come.
UNLESS you are doing burnout and what NOT then who knows?? LOL

Chris also FrankO's E99 combo is proven to be time tested and holds up very well. His truck tows heavy and has been from one end of this country to the other. I myself would like emulate FrankO E99 combo.
To me dyno #'s are like a pi$$ing contest, it really doesn't prove much. We are talking trucks here. But if dyno #'s are your thing then I'll bet you are also into drinking alot of beer and having a pi$$ing contest with your buddies. Sorry that's NOT for me !!
I am like you as far as I want a truck that can tow heavy from one end of this country to the other without a problem.
Besides if I want to go fast I'll do it on 2 wheels.

Now I am pretty sure you are running the stock 9 blade from a late99-03. I had thought you and I talked about this a couple years back. When I got a billet DB 9 blade from Roland. I'm kinda forgetful in my old age. Sorry
And for you guys that might not know a 9 blade moves more air then a WW. Which FrankO E99 combo proves you can run a 9blade and still not have surge towing. I contribute that to tuning, driver skills and a sound E99 combo. Good Job !
I need to PM you on another subject.

 

OK, I checked in the acronyms department and can't find it. Sooo what is the IDM? Where would it be located?

Thanks,
Mark

 

Injector Driver Module

Drivers side fender well close to the cab. You'll have to remove the fender liner.

 

Clutch maybe?

 

Thanks, and is that the same as IFDM: Integrated Fuel Delivery Module?
I know I ask a lot of questions, I'm trying to figure these things out.

 

Here is a link to tell you more then you ever cared to know about 7.3 PSD IDM's. Swamps is the best when it comes to IDM's
7.3 Power Stroke IDM

 

No. I don't think those came on our generation of diesels. They may have been on some of the gassers from our era.

Those are nice IDM's. They do seem to cause a bit more injector noise from what I have seen and heard.

That GSD pup has grown.

 

The price on the Swamps IDM has gone up about 50% in the last couple of years. It is priced now to where I can't afford one. A couple of years ago they were like $275 and now over $400. I was looking at them today. They are nice but now out of my price range. If I had over $400 for 1 mod I think I would go with a Fluidampr or nice set of tunes.

The GSD/ Maximus is now 14 mths old and he is no longer a cute little puppy. He has gotten big he about 32" at shoulders and I have no idea what he weighs. I know he is over 75lbs. He's still a handful but he is getting pretty good at his job.
But he is very sweet with my little girl and the wife. He isn't always so nice to me.

 

Yes, the IDM's are expensive. I have read they are worth the cost if you are running huge injectors...not so much for what I have.

So, I checked out the Fluidampr link that you sent, thank you, and it states they are for L99-03 and "externally balanced".

http://www.fluidampr.com/assets/documents/720211B.pdf

There is no mention of compatibility with our and the OP's e99's and I can't find a different model number for the 7.3. It was Saturday night when I saw your reply so no one was open to discuss this. Do you know if it is compatible with the e99? I am not aware of any differences in balancing where the e99 is concerned or did I misread something?

I had a male GSD about 20 years ago and had the same situation: great with my daughters and wife, yet he and I had a challenging relationship once he hit dog puberty. He always wanted to be the alpha in our pack and did not mind testing the balance of power on a regular basis. He was a great dog, but that was a PITA...until he turned about 8 YOA and then he decided to conform. Good luck and patience....

 

Now as far as E99's go I am 99% sure that they are the same as a Late99-03 when it comes to harmonic balancer. So please let us know what the company says. I started another thread on the subject of harmonic balancer since it is something that is over looked on all 7.3's. Actually all engines that are externally balanced will benefit from a better than stock harmonic balancer.

I do have to agree that a modded truck with injectors will benefit more from a IDM over a stock injector. But still it is a solid modd. That also holds true for the Fluidampr / harmonic balancer.

Only a GSD owner would know what we are talking about...and you know !! I have always had dogs and I prided myself on training guard dogs but this GSD is a handful. Mind you he is my first GSD.
I'll PM on the subject of GSD to not side track this thread.
Little late... Sorry guys