2004 Ford F150 Rattle

2004 FORD F-150
100,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
R_MCALLISTER
  • MEMBER
  • 2 POSTS
My truck has developed a rattle that seems to be coming from beneath the truck in the middle of the front floor board. Rattle is not present until you accelerate. With car in park there is no rattle when you press the accelerator.

Any ideas would be greatly appreciated.
Sep 9, 2010 at 4:22 AM
Advertisement
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
That is very likely a Catalytic Converter broken internally. If you crawl under the truck with the engine OFF. Use the heel of your hand to hit each converter sharply and see if one of them rattles.
Sep 9, 2010 at 4:42 AM
Avatar
R_MCALLISTER
  • MEMBER
  • 2 POSTS
IS THIS A COSTLY REPAIR?
Sep 9, 2010 at 5:37 AM
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
It can be. It depends on whether there is an aftermarket replacement available. Talk to an exhaust specialty shop and they can verify the problem and tell you what's available.
Sep 9, 2010 at 6:20 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle