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Old Jan 6, 2011 | 04:10 PM
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Totally Confused
Just when my 4"MBRP Turbo back, no cat started to break in and sound good. I had my 04 125,000 mile truck serviced, Rotella 5-40w oil change with motor craft filter, and a trans service and now I can hardly hear my turbo at idle. My truck sounds totally different off the bottom hit of throttle What would cause this to happen?
 
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Old Jan 6, 2011 | 04:21 PM
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Did you have it done at the dealer? If so did they maybe reflash it?
 
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Old Jan 6, 2011 | 05:28 PM
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Originally Posted by cak301
Did you have it done at the dealer? If so did they maybe reflash it?
They would have charged to reflash an 04. If so should be on the invoice.
 
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Old Jan 6, 2011 | 05:51 PM
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Are you still seeing boost?
 
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Old Jan 6, 2011 | 07:45 PM
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No reflash and dont have gauges but truck seems to be running great and not done on power at all. as a matter of fact Im even getting .5 btter fuel mileage since. but it just sounds like a differant truck
 
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Old Jan 7, 2011 | 04:25 PM
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Come on guys someone has to have a reason why this would happen. Im telling you it almost sounds like the stock exhaust is back on the dam thing! Making me sick.... Could it be the Rotella T6 5-40w? Never ran it before.
 
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Old Jan 7, 2011 | 04:37 PM
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Originally Posted by 1bad04
Come on guys someone has to have a reason why this would happen. Im telling you it almost sounds like the stock exhaust is back on the dam thing! Making me sick.... Could it be the Rotella T6 5-40w? Never ran it before.
It is not the oil. I do not have a clue on what it could be though.
 
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Old Jan 7, 2011 | 04:37 PM
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Originally Posted by 1bad04
Come on guys someone has to have a reason why this would happen. Im telling you it almost sounds like the stock exhaust is back on the dam thing! Making me sick.... Could it be the Rotella T6 5-40w? Never ran it before.
The oil isn't going to change the exhaust sound.
 
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Old Jan 7, 2011 | 04:43 PM
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The reason i asked about the oil is that the motor has become alot smoother running and more quit as well.
 
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Old Jan 7, 2011 | 04:46 PM
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Originally Posted by 1bad04
The reason i asked about the oil is that the motor has become alot smoother running and more quit as well.
There's a diff. between mechanical noise and exhaust noise. Syn. oil has been known to quiet down the cold start mechanical noises.
 
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Old Jan 7, 2011 | 05:02 PM
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I'm up for suggestions! lol
 
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Old Jan 7, 2011 | 05:13 PM
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Maybe they decided to practice on your truck and did the reflash.
 
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Old Jan 7, 2011 | 05:20 PM
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Originally Posted by teppler
Maybe they decided to practice on your truck and did the reflash.
Work was not done at the dealer just a oil and lube shop.
 
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Old Jan 7, 2011 | 05:25 PM
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Originally Posted by 1bad04
Work was not done at the dealer just a oil and lube shop.
Just out of curiosity, do you know for sure that they used OEM filter. If not I would get it out of there ASAP and did they use Mercon SP or LV tranny fluid. If not get that out of there. JMHO.
 
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Old Jan 8, 2011 | 08:47 AM
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Originally Posted by 69cj
Just out of curiosity, do you know for sure that they used OEM filter. If not I would get it out of there ASAP and did they use Mercon SP or LV tranny fluid. If not get that out of there. JMHO.
I purchased all the filters and fluids from ford myself. Well except for the Rotella. And the trans fluid was the SP not the LV what is the differance? Dont get me wrong the dam thing runs, shifts and mechancally sounds the best its ever has, its just the Dam Turbo/Exhaust lost sooo much
 
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