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Locked up engine

Tiny
JEFF ARNOLD
  • MEMBER
  • 2001 FORD WINDSTAR
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 62,000 MILES
2001 Ford Windstar v6, engine locked. I can turn the engine backwards freely, but going forward, the engine stops at the same time, everytime. Running fine when it was shut off, oil pressure good etc.
Sunday, January 30th, 2011 AT 7:00 PM

8 Replies

Tiny
JEFF ARNOLD
  • MEMBER
  • 5 POSTS
Correction, the engine stops at the same "place" everytime.
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Sunday, January 30th, 2011 AT 7:19 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
I would remove all the spark plugs looking for one that is damaged then try to turn the engine with the plugs out.
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Sunday, January 30th, 2011 AT 7:35 PM
Tiny
JEFF ARNOLD
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  • 5 POSTS
If it were a damaged spark plug, wouldn't that also do the same thing while turning the engine backwards? Just thinking outloud.
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Sunday, January 30th, 2011 AT 7:54 PM
Tiny
WRENCHTECH
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I'm just looking for evidence of damage in the upper cylinder.
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Sunday, January 30th, 2011 AT 7:56 PM
Tiny
JEFF ARNOLD
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  • 5 POSTS
Gotcha, I will pull them.
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Sunday, January 30th, 2011 AT 8:00 PM
Tiny
JEFF ARNOLD
  • MEMBER
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What are the odds of a vapor lock? I pulled the plugs, all looked good, I could turn the engine. No damage to the plugs, no shavings etcc. Reinstalled the plugs and it started. Runs good. Stopped and started it several time, no issues. Vapor lock is the only thing I can think of.
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Sunday, January 30th, 2011 AT 9:10 PM
Tiny
WRENCHTECH
  • MECHANIC
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No such thing as vapor lock on that system. Now, hydro-lock is a different story if you got a cylinder full of coolant somehow but that's why I told you to remove all the plugs and eliminate that possibility. You should see evidence of something that shot out of the cylinder when you cranked it with no plugs in it.
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Sunday, January 30th, 2011 AT 9:24 PM
Tiny
BLAZZ81
  • MEMBER
  • 6 POSTS
I have the same problem, it has happened 3 times in the last year, but today when I got it unstuck and started it has a low end clunk clunk clunk noise!

Any one know whats going on here?
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Friday, January 13th, 2012 AT 12:59 AM

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