2003 Chevrolet Astro Motor shaking.

2003 CHEVROLET ASTRO
130,000 MILES • V8 • RWD • AUTOMATIC
Avatar
KITMS7
  • MEMBER
  • 48 POSTS
My van motor shakes when I drive it but it doesn't have a miss in it. It has also been using more gas. The problem started when I put Marvel Miracle Oil into the engine. Can you tell me what could be causing it to do that?
Dec 17, 2013 at 3:26 PM
Advertisement
Avatar
HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
it may be carbon broke off someplace, but scan for codes and check fuelpressure first with a gauge. then check for a broken motor mount.
Dec 18, 2013 at 7:54 AM
Avatar
KITMS7
  • MEMBER
  • 48 POSTS
Could it be ?the spider inside of ?the engine that ?the gas run through? Its not ?the motor mount. Its more of a vibration that runs through it
Dec 18, 2013 at 10:46 AM
Avatar
HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
it may be but tht would normally set a code. checkfor a vacuum leak, hoses etc. it may be that. if a spider goes bad normally the vehicle won't start.
Dec 18, 2013 at 11:58 AM
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.