I was driving down the road and the truck won't accelerate. Then loses power and slows way down, then after a bit will accelerate and does good, but I never know when it's going to happen or how long. This truck only has 70,000 miles on it - it's a 2002 dodge turbo diesel 24 valve. This is really dangerous. I would love to know how to fix. I've already had to replace all 4 calipers. I can't understand why with this few miles on it.