99 & up 7.3L Power Stroke Engine and DrivetrainDiscussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
Seems my 99 F250 diesel engine sounds like a mack truck. Runs fine with no smoke or leaks but is it normal to sound loud like that? Friend has a 2004 6.0 psd and seems much quieter. I dont mind the sound but want to make sure its not a sign of failure.
Around 1700rpm and up the turbo whistle is pretty loud which I like. My previous truck was a 2005 lariat Screw with a roush supercharger and I loved the whine of the supercharger. Will getting a CAI effect the turbos sound or performance?
Does your truck already have any mods to it? Mine had some when I bought it and it is alot louder than my grand daddys 92 powerstroke and his 95 7.3 turbo both of which are 100% stock.
__________________ '00 F250 7.3 Pwrstk, 6spd, 4x4, man hubs, dana frt, 35x12.5x16.5, Bully Dog 6 pos, and a SouthBend Twin Disc clutch to top it all off. '03 Explorer, stock, (wifes grocery getter) '85 Bronco,4x4, work in progress for son '83 Ranger, 2.2 ltr diesel (factory), 4spd, 2wd, 3" exhaust stack no muffler, project truck
Your '99 will sound much different than your buddies 6.0 (not to mention you will have less issues too). They are completely different motors. The 6.0 was designed to be quieter and as diesels evolve they are getting quite good at silencing them.
More than likely there is nothing wrong with your truck. The 7.3's are a little louder, but not near as bad as the older Cummins motors.
Is your truck an early 99 or a late 99? That makes a difference in the turbo sound as they had different compressor wheels.
A CAI will allow more turbo sound to be heard. The factory box does a good job keeping the whine from escaping. Some even remove the insulation from the hot side CAC tube. They claim it helps the turbo sound. I did it on mine to clean up the engine bay. It maybe louder, but really hard to tell IMO.
2002 F-350 CCLB 4X4, HD4R100 , Riffraff FRx, Riffraff CAC Boots & PRI's, Bellowed Up-Pipes, 4" Diamond Eye exhaust, Powerslot rotors, ATS Ported Compressor Housing, DP Tuner-F6, Autoenginuity, EEC-V Breakout Box, KCM S.S. HPX Line, S&B Filters intake, Quad Autometer gauge pod, Inovations canopy, Banks Big Head wastegate actuator, 6.0L Trans Cooler, Spin-on Transmission filter with custom bracket, Zoo-dad, Dieselsite Coolant Filter, Cobra 29LTD/NW CB, DVD and always looking to do more....
As long as you haven't blown a boot off, the whine is the whine. The 7.3 doesn't have any whine at idle, unlike the newer trucks. If that's what you are looking for, changing out the airbox, intake tube, and stripping the insulation will help. Beyond that, a few well placed holes in the compressor tips could make it sound like an air raid siren
99.5 PS CC 4x4 SRW ZF-6
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