Strange power surge
When im accelerating normally everything sounds/acts fine then all of a sudden the RMP's will jump 100-200rpm and the injector clatter sounds really aggresive and louder than normal, the truck accelerates fast for a slit second then everything goes away and its normal again, takes about half a second for all of that to happen.
The only thing I've done to the truck recently is change the oil cooler. I thought maybe my programer was messing with something so I put the stock program back in it and it still does it but its quieter and doesnt accelerate as hard for that slit second.
It usually happens right around 1800 rpm and jumps to 2000.
Im stumped, any info is much appreciated