just started to knocking?

2000 MERCURY BOBCAT
140,000 MILES
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WILDSTAR27
  • MEMBER
  • 1 POST
i have a 2000 mercury villager estate and it just started to knocking when i crank it up and it heats up its shuts off ive tried a tune up it didn't work and a oil change i don't understand what it could be

its a loud kncoking sound the never over heats but when it warms up it shuts off?
Apr 30, 2012 at 8:27 PM
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FIXITMR
  • ✓ASE Certified Mechanic
  • 9,990 POSTS
  • ASE Certified Mechanic
it knocks when you first start it and then it goes away? and when running for a while it quits?
Apr 30, 2012 at 8:33 PM
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