Michael Bolin

I had to change the right side headlight. I removed the air filter box and changed the light. After I reassembled the unit, My truck was running very loudly. You can feel the air blowing under the hood now. I have disassembled and reassembled this three times now, and can't get it right. My check engine light is on now too. I had no issues with this until I changed the headlight. Any ideas???