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1995 Chrysler LHS Why does the spark plug pop out when you

Tiny
MARTINAKELM
  • MEMBER
  • 1995 CHRYSLER LHS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 189,000 MILES
Two days ago the weather was really cold and I went out to try to start my car and it wouldn't start so I put some heet in the gas tank along with a gallon and a half of gas and it still doesn't want to start. What are the symptoms of the fuel pump going out? Also My aunt noticed that when I try to start the car one of the spark plugs pops out?
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Thursday, January 31st, 2008 AT 10:26 AM

3 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
To tell if the fuel pump is bad you have to perform a fuel pressure test at the fuel rail.

First check the spark plug for damage, if the threads are stripped or the electrode bottom is bent then chances are it was hit by the piston, and you should have the engine serviced, if no physcial damage on it is seen then it was just loose and the vibration and pressure popped it out.
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Thursday, January 31st, 2008 AT 8:52 PM
Tiny
GARNZY
  • MEMBER
  • 13 POSTS
If the plug is stripped, ask around the shops if you can still but sleeves for aluminum heads. They usually strip when plugs are being tooken out repeatedly when the engine is still too warm
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Sunday, March 29th, 2009 AT 7:39 AM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Sounds good garnzy.

Either that or teh plug isnt put in properly. But yeah if the threads are ruined.
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Sunday, March 29th, 2009 AT 10:51 AM

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