Starting to have a dead pedal symptom. When I shift, sometimes the pedal goes dead, no engine response for a second or 2, then it comes back to life. Initially it started as a hiccup. Would just be noticeable between shifts.  No codes, new symptom is first start today was rough, low idle, ran ~5 seconds then died. Started back up with no issues, minus the hiccup/dead pedal issues. Around a year ago had the FCA go out. Replaced it ran fine.

This winter I have had to plug the block heater in since the batteries are going out. Or else they almost don't have enough juice to start the truck after cycling the grid heater. Yea I have one bad grid heater solenoid so only running on one heater now as well.

Another thing that I finally tied into voltage is once it gets cold enough for the grid heaters, is that when the grid heater cycles off, and battery voltage comes back up the dash dings and some warning lights flash.

I have the smarty touch and desired charging voltage is 15V. Is that a little high? Trying to figure out how to display the datalog I took with the smarty to see when the non-responsive pedal is tied to something else.

The 2 red top optimas I'm running are maybe 8-9 years old. They were in my 01 ram. Got this truck and swapped them over. Wondering if bad batteries could cause this. If so, I have to research batteries now.

Edited February 13, 20169 yr by Cowboy

Hope it works out for you!!   But I have a hard time getting a handle on how some "cloudy" diesel could trash a FCA!!!!!  It's still on the relatively "low pressure" side of things IIRC.

 Understand as well. Truck been running fine last couple days. I dumped the diesel out of containers I used to drain the tank and the last bit of fuel I poured into a dry gallon water jug and there was about 1/2 of whiteish/milky crap on the bottom.  Also the rest of the diesel I checked stayed cloudly. Only bit of diesel that cleared up was in the pitcher that I posted earlier in the thread.  Going back to a bad batch of fuel.  Only thing makes sense to me.  

As a last ditch before drastic measures I got one more fca with the cleaned out tank and fresh diesel and it ran fine.  It did need a bit of time to learn again.  Idle want stable at first.  Activating the high idle seemed to make it learn quicker. Im at a loss as to the actual cause.