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MikeD'
MikeD', Technician
Category: Car
Satisfied Customers: 696
Experience:  ASE Cert, AS Degree in Automotive Diagnostics
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what would cause a spark plug to be blown out of the engine block

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Extreme detonation or weak threads as such in a mini-cooper supercharged, high compression or detonation from a foced induction vehicle.
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Customer: replied 8 years ago.
NO, YOU MISS THE POINT, THE SPARK PLUG WAS IN AT THE TIME. IN OTHER WORDS, SOMETHING HAPPEN INTERNALLY THAT CAUSED THE PLUG TO BLOW OUT.
Customer: replied 8 years ago.
OKAY FOR HI PERFORMANCE ENGINES. BUT A 4-CYLINDER KIA SPORTAGE.
IT WOULD SEEM i HAVE A WARRENTY ISSUE ON MY HANDS./

Yes, combustion chamber detonation will blow the plug out of the cyl due an extreme lean mixture from possible timing belt that has jumped time which was very common in these vehicle I have replaced many theat were still under warrenty in an 02 kia sportage the teeth fell right off of the belt. Try to pull the plastic cover back behind the crank pully if you see little rubber rods fall out you have a stripped timing belt

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