this might be wierd question

str8wkd · #1 (**permalink**) 05-04-2011, 07:00 PM

Ok I have a 04 350 lariat super cab 4x4, what I dont understand or why it is but my truck compared to every other 6.0 ive paid attntion too, mine next to all others sounds like a 7.3 whats the deal with that

2003kingranch · #2 (**permalink**) 05-04-2011, 07:12 PM

thats interesting. i dont know.

mines an 03 and it vane cycles (dont know if yours has been updated or not) and when the vanes are at 0 duty cycle it kinda sounds like a 7.3 at idle

str8wkd · #3 (**permalink**) 05-05-2011, 06:55 PM

Quote:

Originally Posted by 2003kingranch

thats interesting. i dont know.

mines an 03 and it vane cycles (dont know if yours has been updated or not) and when the vanes are at 0 duty cycle it kinda sounds like a 7.3 at idle

what do you mean by it vane cycles? I'm still learning on psd's
thanks

2003kingranch · #4 (**permalink**) 05-05-2011, 06:58 PM

ill post a vid tomorrow

Lilpooh · #5 (**permalink**) 05-05-2011, 07:12 PM

Quote:

Originally Posted by str8wkd

what do you mean by it vane cycles? I'm still learning on psd's
thanks

Ford updated the PCM programming to help prevent the vanes in the Variable Geometry Turbo (VGT) from sticking. While at idle, the PCM tells the VGT to sweep the vanes open and close. It's a very distinct sound in the exhaust. You can YouTube it to get an idea.

e99f2506sp · #6 (**permalink**) 05-05-2011, 07:23 PM

Quote:

Originally Posted by str8wkd

Ok I have a 04 350 lariat super cab 4x4, what I dont understand or why it is but my truck compared to every other 6.0 ive paid attntion too, mine next to all others sounds like a 7.3 whats the deal with that

Cause deep down you really want a 7.3...