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EcoBoost (3.5L, 2.0L) 3.5L Twin Turbo EcoBoost V6 and 2.0L I4 EcoBoost Engines

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Old 01-28-2013, 07:23 AM
thomastl thomastl is offline
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New intercooler installed - no change

They installed the new intercooler last week.
As part of the installe there is a new software load.

1. Engine bogging when you stomp the peddal to the floor at highway speed. Still the same. I tried it on Saturday when it was raining after about 30 minutes on the interstated at 70 mph. Bogged, missed, sputtered. Same as before.

2. Miss / Dropping boost pressure under light acceleration. Still the same.

3. Boost pressure change. It would hit 16 psi masx of boost at about 3500 to 4000 rpms before. Now it is about 12 psi of boost. It will hit 16 psi right after a transmission shift if you hold it but then boost starts to drop back off. I was able to do this on a dry weather condition day.

4. Gas mileage - no change. At first it was higher just like every time before when a new tune was installed. But after a few 100 miles the mileage goes back down. I got right at 20 mpg right after the tune on the highway. After 300 miles I got 17.6 mpg on the highway. Same driving conditions. At one point I was down to 15.6 but it slowly came back up.

Bottom line - no change with the new intercooler and new tune.
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Old 01-28-2013, 01:32 PM
Charlie Bravo Charlie Bravo is offline
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Charlie Bravo has a great reputation on FTE.Charlie Bravo has a great reputation on FTE.Charlie Bravo has a great reputation on FTE.Charlie Bravo has a great reputation on FTE.Charlie Bravo has a great reputation on FTE.
When was your vehicle made? Best, CB
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Old 01-28-2013, 01:46 PM
thomastl thomastl is offline
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April 2011.
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Old 01-28-2013, 10:05 PM
clydesride clydesride is offline
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I'm wondering what they will come up with next? Also wondering if I am going to bother changing mine... the cats could disappear and there would be no harm?
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Old 01-28-2013, 10:05 PM
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