2008 F250 6.4 Hesitation/Smoke Issues - Ford Powerstroke Diesel Forum
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Old 10-22-2013, 08:03 AM
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2008 F250 6.4 Hesitation/Smoke Issues

Apologies first for possibly reintroducing this question without full bore research of all threads, but here we go.

I have an EDGE CTS monitor I purchased to isolate problems I recently had with ECT and EOT. That resulted in replacing the oil cooler. Ugh!

Using the gauges in the CTS, I am now noticing that if I suddenly accelerate, no matter the speed, the engine seems to hesitate with white smoke coming from the tailpipe. It happens no matter how long the engine has been running. I use the truck only for commuting--no towing at all.

The gauges show engine load at less than 50%, 20 psi turbo or more and I get the Exhaust Back Pressure indicator maxing out at 40 (It flashes 40 in red on the CTS) and the regen light blinking. I also experience a power loss. I usually back off the pedal and accelerate more slowly and the problem goes away.

Now I noticing if I have to go up a very steep hill at lower speed/pedal pressure, the same thing happens, like the engine is maxing out and not able to pull like it should.

Any clues on what is happening? Or what else I should be monitoring?

Many thanks in advance.
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Old 10-22-2013, 08:04 AM
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BTW, the truck is fully stock!
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