after my FICM was replaced when my truck is idling you can hear the turbo, then it will sound like a low growl like a gas truck with an upgraded exhaust? It goes away pretty quick, then will happen again a few min later. Is this normal?

 

You the Veins in the turbo will Cycle at Idel

 

The FICM strategy shouldnt change that tho. You sure it wasnt doing that before?

 

Well I got the truck in April and never heard it before. The only thing I can think of is the FICM..

 

Did a Ford dealership replace your FICM? If so they would have flashed the latest strategy in the truck which cycles the veins on the turbo.

 

Yeah the Ford dealership put it in, with two new batteries..

 

Yes, sounds like your PCM strategy was updated to the one that cycles the turbo vanes. Nothing to worry about, except the newer strategies get lower MPGs...

 

I noticed that too, im only getting 10MPG in town now when I used to get 12.. Havn't had it on the highway since the fix.
Thanks,

 

If you want to get your MPG back, you can get your FICM reflashed and get custom PCM tunes. The FICM reflash will do the most for mileage and will give you a little more power. Check out Power Hungry Performance, powerhungryperformance.com

 

Well that is a bummer, sped all that money to get it fixed to spend more money to make it run right again.. lol Should I just do the FICM programming? This is what the site said.. Also is it just restoring the Hp I lost or will it add to it as well?

FICM & ECM Rollback PricingFICM Programming ONLYReprogram your FICM with our hybrid FICM calibration
This includes the Economy, Atlas 40, Atlas 80
and HERCULES FICM strategies$150ECM/TCM ROLLBACK with
STOCK CALIBRATION ONLYReturn your ECM/TCM to a preferred strategy
that is completely stock and can be used with any
standard programmer (Edge, SCT, etc.)$75ECM/TCM ROLLBACK with
CUSTOM POWER LEVEL* ONLYReturn your ECM/ TCM to a preferred strategy and
provides you with a custom power level*$150ECM/TCM ROLLBACK with
EGR DELETE ONLYReturns your ECM/TCM to a preferred stock
strategy to work with your EGR Delete$150ECM/TCM ROLLBACK with
EGR DELETE and a
CUSTOM POWER LEVEL*Returns your ECM/TCM to a preferred strategy and
provides you with a custom power level*
to work with your EGR Delete$150

 

Their Economy FICM tune will restore the lost MPG and power, the Atlas 40, 80, and Hercules give big power gains beyond that. Most settle for the Atlas 40 for a little power gain and MPG, without having to worry about it getting smokey when you put the power down. Also, if you don't have head studs, I definitely wouldn't go above the Atlas 40 tune.

 

So the Atlas 40 tune is safe then? Thanks for the help.

 

People blow headgaskets with the stock tune, so you can't say anything is safe, there is always risk.

 

Thats exactly why I Keep my truck out the dealer if I can

I dont want them to reprogram stuff especialy emmissions stuff like EGR

 

How many HP can you expect from an Atlas 40 or 80??
Mike