2005 Ford F-250 Super Duty Q&A

2005 Ford F-250 Super Duty Question: Truck has loss of power on cold days even after engine warms .

Truck stays plugged up on cold days it starts fine but has no power even when engine temp has got to running temp like trans is slipping but on warmer days it run perfectly fine no problems at all any ideas??? -
Answer 1
Service trans. -