Ok...this is an occasional problem. Sometimes when either downshifting or rolling up to a light, the motor dies. It only does it about 1 out of every 20 times. I have a new rebuilt 4544 IP, and I have bypassed the original factory filter with a Racor. Everything else looks good, the truck starts easy cold or hot, I suspect, and it doesn't appear to have any air leaks. When she does die, I just hit the key again and she fires instantly! Any ideas?