6.4 Powerstroke Engine Problems: Fuel Failures, Cracked Pistons & What Breaks Them
Start the 6.4 and it sounds right, tight clatter, crisp idle, no smoke. Then the coolant drops, the oil level climbs, and regen locks you into a 30-minute idle while the turbo cooks. The 6.4 Powerstroke was built under pressure. EPA targets loomed. The 6.0’s failure record haunted Ford. So Navistar cranked out a block … Read more