Loud clatter

1995 JEEP CHEROKEE
189,000 MILES • 6 CYL • 4WD • AUTOMATIC
Avatar
BOBWV73
  • MEMBER
  • 1 POST
Loud rattle or clatter from engine. Valve cover vibrates. No oil leaks, good oil pressure, no loss of power, no loose parts, slight drop in fuel mileage, no overheating, no check engine light.
Feb 22, 2011 at 9:07 PM
Advertisement
Avatar
CJ MEDEVAC
  • ✓ASE Certified Mechanic
  • 11,004 POSTS
  • ASE Certified Mechanic
1 QUART OF MARVEL MYSTERY OIL----SUBSTITUTE IT FOR 1 QUART OF MOTOR OIL--NEXT OIL CHANGE

THIS MAY HELP--IT WILL "CLEAN" YOUR TAPPETS (HYDRAULIC LIFTERS) THEY CONSTANTLY ADJUST TO TAKE UP THE SLACK IN YOUR VALVE TRAIN--IF THEY DO NOT CONSTANTLY OPEN AND CLOSE CORRECTLY YOU GET CLATTER.......THEY ARE SORTA LIKE A HYDRAULIC JACK OPENING AND CLOSING RAPIDLY.......CRAP MAY BE KEEPING YOURS FROM CLOSING.

EVEN THOUGH IT MAY TAKE SOME TIME,

DO RETURN TO THIS QUESTION AND LET ME KNOW IF IT'S WORKING,

THIS IS MY HOBBY, AND I DO WANT TO KNOW HOW THE SOAP OPERA IS PROGRESSING!

THE MEDIC
Feb 22, 2011 at 11:47 PM
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
If the clattering/tapping continues after the use of the magic oil best open it up and investigate-if it turns out to be valve lifters the camshaft follows
Feb 23, 2011 at 9:57 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.