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Damage from driving 70 miles with blown out spark plug?

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Damage from driving 70 miles with blown out spark plug?

 
  #1  
Old 03-03-2019, 05:49 AM
makemeknowit
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Damage from driving 70 miles with blown out spark plug?

I was coming home yesterday from a rock crawling trip in Clayton OK when a spark plug spit out with 70 miles to go. I eased it back in but it blew out again 10-15 miles later and wouldn't stay in after that. I drove on home, gas fumes were unreal and inescapable. So how likely is it the raw fuel trashed the cylinder wall in that hole?
 
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Old 03-03-2019, 05:54 AM
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I think the PCM disables the injector after a while of it seeing a misfire on any one cylinder. I sincerely hope your cylinder and rings are NOT trashed!

My guess in the fumes were from combustion gases in the other cylinders "leaking" into and escaping from the blown plug cylinder.
 
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Old 03-03-2019, 05:57 AM
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Why didn't you just unplug the injector?
 
  #4  
Old 03-03-2019, 06:14 AM
tiffy2000
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From blownsparkplugs.com

Q: Can I drive with a blown plug to bring my vehicle in for repair?
A: Of course I do not recommend it. But I have had many customers remove the damaged coil, spark plug, and disconnect the fuel injector to drive the vehicle in for repairs. One customer drove his V8 over 700 miles to our location for repairs. Note! If you plan on following this process, VERIFY that you disconnected the correct injector.
 
  #5  
Old 03-04-2019, 08:39 AM
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Depending on whether it is OBD-I or OBD-II, it may or may not disable the injector on the cylinder in a reasonable amount of time.
 
  #6  
Old 03-04-2019, 04:49 PM
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It will be nice to have new cats. You can eliminate that from future trouble shooting.

Your cylinder wall is probably fine. I bet most of the fuel was expelled.

Check your dip stick to see if you detect any gas to make sure though.
 
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Old 03-06-2019, 11:32 AM
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I'd say the chances are pretty slim that there's significant damage. Patch it all up and do a compression test if you're worried.
 

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