1996 Dodge Neon Spark Plug Popped Out

DODGE NEON
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SBLAKE1016
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I have a 1996 Dodge neon over 140,000 miles (Gauges not working properly). I started the car and I got a loud popping noise during idle; I checked the engine and saw a cylinder (or spark plug) had popped out. I tried to screw it back in, to no avail. Any help would be appreciated.
Dec 24, 2006 at 4:28 AM
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SERVICE WRITER
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If you get a closer look, the thread are probably now missing in the head for the spark plug. I have seen guys use a heli-coil to resolve it.

This happens somtimes because of plugs not being changed early enough and the threads coming partially out when they are changed, and also from overtightening.
Dec 26, 2006 at 12:54 PM

Suggested Repair

Inspect the spark plug hole; the head threads are likely stripped. Repair the threads with a helicoil insert. Change plugs on schedule and avoid overtightening.

Conversation Summary

The owner of a 1996 Dodge Neon with over 140,000 miles heard a loud pop at idle and found a spark plug had come out and would not screw back in. The expert said the head threads are probably missing and a helicoil can repair them, often after overdue plug changes or overtightening.

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