Hello, today my 06 did some very strange things that really has me lost for what the problem is, I've looked around but can't find anything similar. Today I put my truck in reverse to back out of a spot and everything seemed normal but when I put it into drive it shifted very hard from natural to drive to the point I was jolted on my seat. Once I let off the brake to casually accelerate I noticed that the truck was high rpm for no throttle being pressed. Normally just letting off the brake in drive would be around 650 rpm while today it was around 890 to 900 rpm. I started to give the truck some throttle about 1200 rpm the truck seemed very sluggish like it was struggling and the engine would jolt from 1200 rpm to 900 rpm and back up to 1200 rpm in just a split second. At this point I was very worried and I stoped but the truck in park and it still idled around 890 to 900 rpm and when i put it back into gear it went in extreamy rough and did the sane surging. I parked the truck and turned it off for about 10 minutes and them I turned it on but everything was 100% normal, went into gear fine, ran fine, and shifted fine. Does anyone have any clue what is going on here? Any help would be really appreciated. Thank you all in advance.

 

Keeo in mind my truck dies habe arou d 316,000 miles on it.

 

Have you scanned it for any codes?

 

That doesn't look like a transmission problem to me. The transmission is reacting to the engine speed being too high. Fix the engine problem and the trans will be fine.

 

I have not checked for any codes but the check engine light is not on. I'll check for codes tonight.

 

I read the codes and it is coming up with the code u0100. From what I've read that doesn't sound to good, what do you all make of it?

 

Are you running a tuner now?

 

Yes, I'm running a Edge Evolution

 

Have you tried to return to stock, then re-check?

 

The reason it some tunes lie to the PCM to get it to do things the way the
person that wrote the tunes want it to run. Makes a really hard to do diagnosis
if the parameters are not what you know they should be do to a tune messing
with things.

So once your back to stock scan it again for codes and let us know what you find.
Mark knows this transmission very well.

 

The truck had the same problem today so when I was picking up a new guage cluster (mine went out and hasn't world 98% of the tine the past few days) I put the truck in reverse and everything seemed fine but when I put it into drive it did the whole surge problem again, I limped it across the road pulled over and put the truck back to the stock tune like you said and read the codes again and come up with the same code from before but also u0155. I looked that code up and found it was a loss of communication with the guage cluster. Some forums I read said that with the same code and guage cluster problems I've been having they have experienced surging in the engine while driving, similar to my problem. Do you guys think that this code and my cluster being bad could of caused my problem? I did install a new cluster today and I haven't had any problem yet but I've only drove a few miles since I put in the new cluster.

 

The best one to ask that question of would be one of our sponsors

FTE Member : @CircuitBoardMedics

Here is there site >>> https://circuitboardmedics.com

 

Like Yahiko said,,,call them.... They know best...But i'll tell you..yes,,that is what's causing your issue.. Gauge cluster microprocessor talks to alot of things on these trucks