Clunking noises after installing a new manifold

2009 MERCURY MARQUIS
228,000 MILES
Avatar
JBRANC30
  • MEMBER
  • 1 POST
We just put a whole new manifold intake on and now when I try to start the car it makes clunking noises and cuts off.
Jun 5, 2022 at 10:58 AM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
It sounds like you got something down inside one of the intake runners inside the head like a bolt or something, I would remove the spark plugs to see which one is damaged to confirm the problem. sorry, I can tell for sure if you upload a video of the noise here with your response.
Jun 6, 2022 at 8:41 AM