Vibration on acceraration

1999 FORD F-150
160,234 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
MINDLESS
  • MEMBER
  • 4 POSTS
1999 ford F150 4.6, trimbles, vibrates when .. depressing accerator. Only above 15 mph and only when accelorator is depressed. What could it be?
Jun 28, 2011 at 3:05 PM
Advertisement
Avatar
MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
where do you feel the vibration, steering? body? more like a misfire?
Jun 28, 2011 at 3:28 PM
Avatar
MINDLESS
  • MEMBER
  • 4 POSTS
I feel vibration in accelarator mostly, but at speeds over 50mph vibration can be felt mostly acellaratipn padel and floor board area, speeding up to pass a car or merge into traffic its bad. Take foot off gas, it subsides.
Jun 28, 2011 at 6:00 PM
Avatar
MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Have the engine and transmission mounts checked first.
Jun 28, 2011 at 7:32 PM
Avatar
MINDLESS
  • MEMBER
  • 4 POSTS
Thank you for your time and advice, I would have never though of looking in that area. Thank you.
Jun 28, 2011 at 8:31 PM
Avatar
CJ MEDEVAC
  • ✓Experienced Mechanic
  • 11,004 POSTS
How 'bout them "U" Joints?
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Jun 28, 2011 at 8:38 PM
Avatar
MINDLESS
  • MEMBER
  • 4 POSTS
Again thank you, I will have all mounts checked and CV Joints, they have never been changed and now I have 160k miles. You guys are just Great! Thank you again.
Jun 28, 2011 at 8:54 PM
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 Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.