99 diesel noise

Ever since I bought my truck - 5yrs ago, it's been the loudest truck around.
Recently it seems even louder . It rattles like a m-fr at idle, but when you get on the gas it goes away. Iv've been told it could be the tranny or a bearing in one of the pulley driven         ( extermn extredies) externals.(sorry my delete bttn is'nt working). It's a '99 7.3 no mods . Also , when it starts to get cold out , before it warms up it cycles in power. It makes a strong noise (like shhhhhh ) and then sounds normalr . ? After about ten min. this goes aaway .
Any Ideas would be appreciated,

Orin  

Need more details on your truck, like make/model, engine, tranny (auto or manual), and upgrades on it (whether or not you were the one that installed them), miles on the truck, etc.

The more info you give us, the better we can help you.




Kris  
2006 Dodge Ram 2500 QC 5.9L - No Mods Yet
2008 Dodge Ram 3500 QC 6.7L - Titan Fuel Tank Owner

The 99's and some of the 00's had an issue with the TC rattling. That's what you're hearing... It's REALLY obnoxious, but I didn't start having any problems with mine until around 10K miles after I was chipped. The SHHHH sound you're hearing is the EBPV, and that's normal.  
Forged Rods, Tuning by Diesel Innovations, PowerStrokeNation.com L.P.C. President.
Veteran Combat Medic,

Hi Kris ,

Thanks for responding. I'm a liittle behind this week so I didn't see your response till today - sorry. It's a 99 Ford f-250 sd 7.3 ltr. turbo , aot auto trenny, 4wd. No mods that would affect the drivetrain - just hitch stuff.  

I hope you mean the torque converter ? That sounds like where it's coming from.

Man it's loud! Will it go bad ? I have about 150,000 0n it so far. Also, what is the reason for the EBPV to do that , and why is that normal?
Thanks,

Orin  

The EBPV cycles to help warm the motor. If you want to get rid of it, I can point you in the right direction. And yes, the torque converter. It can go out at any time. And take your whole transmission with it.

I recommend changing it out. An OEM 6.0 TC is triple disk and has a slightly lower stall. John Woods makes an adaptor to install it. It works nicely!  
Forged Rods, Tuning by Diesel Innovations, PowerStrokeNation.com L.P.C. President.
Veteran Combat Medic,

if it does that when idling and is cold, that is the wastegate closing/constricting the turbo intentionally to work the engine to help it warm up. those 7.3's were programmed to do so even as early as the first '94's thru the late 02-03 7.3's
Normal operation when just starting it up in the cold mornings
as for the rattle, check with your mechanic, but the SHHHHHH noise is your turbo being choked to work warm the engine up.
Good luck  

I forgot to mention. If you had the TC lock-up mod, you could know for SURE it was your TC.

http://forgotton.net/mods/tclock/index.htm


If you do the mod, leave your truck in park or neutral and hit the switch, the sounds should go away... If not, it's probably a cracked flex plate, but I doubt it.  
Forged Rods, Tuning by Diesel Innovations, PowerStrokeNation.com L.P.C. President.
Veteran Combat Medic,

Sorry to say, but I havn't heard of a TC lock mod.Is it a chip or a module add ?

I'd like to save my tranny before it is affected . Is it advisable to replace the TC

without rebuilding the tranny?A tr4ansmission shop told me to check the bolts on the TC , they weren't loose. Thaen they also mentioned the possibility oef the cracked flywheel. I still don't understand why that would make any noise, but I'll defer to the experts.

Thanks again,

Orin  

griffinredangus:
if it does that when idling and is cold, that is the wastegate closing/constricting the turbo intentionally to work the engine to help it warm up. those 7.3's were programmed to do so even as early as the first '94's thru the late 02-03 7.3's
Normal operation when just starting it up in the cold mornings
as for the rattle, check with your mechanic, but the SHHHHHH noise is your turbo being choked to work warm the engine up.
Good luck

Just a FYI, it is the EBV that causes that sound.  The 1994-1997 trucks didn't even come with a wastegate, so there is no way the wastegate that doesn't exist could possibly constrict anything.  You can gut the ebv and pedistal and you won't lose anything, but the annoying sounds and power loss.  I didn't even notice it taking any longer to warm up either.  

Sorry to say, but I havn't heard of a TC lock mod.Is it a chip or a module add ?

Thanks again,

Orin  


Orin if you look at Sleepers post just above you last one he posted a link for intructions on the TC lock mod.  Just copy and paste it into google.  Good luck.  

If you're worried about it, I would replace the TC. That's almost surely the issue. If you want to be sure, follow my instructions.  
Forged Rods, Tuning by Diesel Innovations, PowerStrokeNation.com L.P.C. President.
Veteran Combat Medic,

Dad's got a 99 f350, made that really loud obnoxious rattling noise, took it up to the ford place, torque converter, they said they very rarely seen a 99 that didnt make that noise, but they said it wouldnt hurt a thing it just sounded like hell.  
1996 F350 Powerstroke. 6 inch stacks, afe cold air, edge evolution, 35 in. mudgrip, NEED MORE SMOKE!