I had never had a problem with mine... Till i hooked up my CTS, found my FICM voltage was running low and would get up to voltage as it warmed up. Tried to repair it myself, and ended up breaking a few caps and resistors splitting the case. Luckily, I found a guy local to me that had newly rebuilt units for less than 200.00 w/ a core swap.
05 Limited 6.0 Excursion
Don't you just love the smell of diesel in the morning......
Throttle response is better and then there's the standard nondescript "It just runs better"...especially when it's cold out. It supposedly gets better fuel mileage but my driving styles vary so I could never get a true reading.
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