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Topic: Who’s still using a 7.3 diesel truck

Posted By: Bedlam on 03/03/21 02:25pm

jimh425 wrote:

I don’t know where all of the noise is coming from for the 7.3 since I haven’t had one. When I had a 6.0, I added the factory hood insulation “liner” and starting running Rotella Synthethetic. The combination got rid of a lot of noise.

Btw, the Onan propane generator that many of us have also got quite a bit quieter when I changed the oil to synthetic.

YMMV.

My engine ran quieter running biodiesel rather than straight dino diesel with friction modifiers after the ULSD was released. So I would guess the pump and injectors did contribute to it.


Chevy Sonic 1.8-Honda Passport C70B-Host Mammoth 11.5-Interstate Car Carrier 20-Joyner SandViper 250-Kawasaki Concours ZG1000-Paros 8' flatbed-Pelican Decker DLX 8.75-Ram 5500 HD



Posted By: sonuvabug on 03/03/21 02:29pm

Bedlam wrote:

jimh425 wrote:

I don’t know where all of the noise is coming from for the 7.3 since I haven’t had one. When I had a 6.0, I added the factory hood insulation “liner” and starting running Rotella Synthethetic. The combination got rid of a lot of noise.

Btw, the Onan propane generator that many of us have also got quite a bit quieter when I changed the oil to synthetic.

YMMV.

My engine ran quieter running biodiesel rather than straight dino diesel with friction modifiers after the ULSD was released. So I would guess the pump and injectors did contribute to it.


My stock 7.3 truck is relatively quiet. No issues talking, listening to the stereo etc. I have the hood liner and run 5w-40 synth oil. I also have cloth seats vs. leather if that makes a difference. No other added insulation etc. that I am aware of.


2007 Adventurer 90fws Truck Camper
2001 FORD F250 SuperCab; 8' box; 4x4, 7.3l diesel, rear Sumo Springs


Posted By: JRJR on 03/03/21 02:43pm

1999 F-250 7.3 PSD.
N. lite 9.6
Mods to made for hauling camper.
Air Bags
Helwig big wig sway bars front and rear.
Rancho 9000 shocks.
E rated tires.
She hauls the camper with ease.
Hit 74,000 miles last week.
I now have a new 2021 on order that should be here this month. Gonna miss the old girl when she is gone but I have had it since it was new and now want 1 more new truck before it is time to cash in.


Posted By: Grit dog on 03/03/21 04:14pm

JRJR wrote:

1999 F-250 7.3 PSD.

Hit 74,000 miles last week.
I now have a new 2021 on order that should be here this month.


You have a valuable old truck on your hands sir!


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold


Posted By: adamis on 03/03/21 06:00pm

Grit dog wrote:

JRJR wrote:

1999 F-250 7.3 PSD.

Hit 74,000 miles last week.
I now have a new 2021 on order that should be here this month.


You have a valuable old truck on your hands sir!


Indeed, don't sell to anyone who doesn't know what they are getting...


1999 F350 Dually with 7.3 Diesel
2000 Bigfoot 10.6 Camper



Posted By: Marcela on 03/05/21 08:56am

With fuel prices going up those older trucks might look a little more attractive.


Posted By: Kayteg1 on 03/05/21 09:09am

Marcela wrote:

With fuel prices going up those older trucks might look a little more attractive.


Not sure about it.
Been to Yellowstone last fall, when fuel prices were low and observing what's on the road, I counted about 5 TC and 500 Sprinter conversions.
The 25 mpg Sprinters sure own the market.
I heard $7 prediction for fuel price, so that sure will put old fuel guzzlers into parking lots.






Posted By: F-350shortBed on 03/06/21 12:04am

I knew very little about TC’s when I bought my truck I knew that TC’s were heavy and that often times suspension adds were required on lighter trucks. I found a great deal on my 2000 F350 and purchased it fast without further research on TC’s.

Once I had the truck I began to worry about safety because my rig is lifted and has larger tires. That’s why I joined RV net; I got a lot of pushback about my setup being dangerous. So far I’ve logged 4.5 hours of driving with a Lance 865, lightly loaded. I only have an oral description to compare the way my rig handles versus on a stock 3/4 ton GMC and it seems like my truck handles great based on the prior TC owner’s oral description.

My suspension mods to my F350 are:
4” lift leveling kit (prior owner advertised 6”) Air bags, 6 leaf 3600# rear springs, rear sway bar,

Drive train mods:
LSDifferential with 4:10 gears; shift kit and heat sink on automatic trans.

7.3 Engine mods are:
Banks chip; Banks waste gate; Banks 4” exhaust with a Banks muffler; K&N air filter; after market Red hat(?) steering gear

Gauges:
Boost gauge; trans temperature; exhaust gas temperature

I think all of these items are overkill for a 2000 lbs Lance 865, but the prior truck owner towed a large fifth wheel with this rig. It’s reassuring going over steep passes knowing my 3 extra gauge measurements, particularly, the exhaust gas temperatures. Hopefully, that gauge will prolong the life of the engine.

I have some bone growth in my ear canals as well as the tiny bones ion my inner ear from surfing cold water most of my life and the hearing damage from engine noise adds a lot of insult to this condition, I had not thought about this problem. I think in my engine it’s the turbocharger, at low boost it’s a tolerable noise level. Above 7psi it sounds like I’m working on the tarmac at an airport without ear muffs. I’ll experiment with putting some insulation over the air filter and along the firewall and post if there is any difference.


Posted By: jimh406 on 03/06/21 05:20am

Do consider changing to a stock air filter. K&Ns aren’t the best filter for a turbo due to potential dirt getting by the filter compared to stock (it gets higher flow by not filtering as much), and you probably for sure are getting air filter noise.

Do you have the hood liner and are you running synthetic already? Rotella synthetic is just a bit more than Dino at Walmart.


'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 DS, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Bags, Toyo M655 Gs, Curt front hitch, Energy Suspension bump stops.

NRA Life Member, CCA Life Member



Posted By: sonuvabug on 03/06/21 07:14am

F-350shortBed wrote:

... snipped ... Hopefully, that gauge (EGT) will prolong the life of the engine.


That gauge and all of the other mods will not prolong the life of your engine as much as your driving habits will.


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