surging

My 05 LLY runs great but while at idle starts surging once it’s warmed up to temp. Also when it starts surging the balance rates zero out. No injector knock or other noises just sounds like it’s cammed. Has new FPR Anyone had this issue? 05 LLY studded, deleted, FASS 165, PPE tunes, down...

Ok. I have an LMM duramax that surges at idle and occasionally jumps when the rpm’s surge while in gear. I have replaced FPR, fuel filter housing, and several fuel lines that were kinked. Truck will go into limp mode occasionally and the p0087 code will pop up. Last night I turned the key off...

Evening all. So I’ve noticed something recently and it seems to be becoming more frequent. Upon start up in the morning and in park my truck rpms surge up and below a normal idle. My lights even dim with the fluctuation. This usually smoothes out after the engine is warm. In addition to this...

I have recently just bought my 1st diesel pick up truck. I noticed the truck smokes quite a bit but still had a dpf on it. I have drove over 1000 miles and the DEF still reads full, and there's cut welds on the DPF. I've come to the conclusion the DPF is gutted and the truck is tuned. I bought...

New here and need some help. I have a 2005 silverado with 130K miles on it. It's a stock truck with no tuner. I haven't changed anything on the truck. Here's my problem. When the truck is cold it does fine. When it warms up is when it notice the problem. When maintaining my speed at...