Spark plugs and coil change

Tiny
ITWASHESOFF
  • MEMBER
  • 2001 FORD EXPLORER
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
Have had the plugs and coils changed, as it was missing on one cylinder (plug broken). Have been told now that there is no compression in the motor. What would cause this as apart from the initial miss, there was no problem?
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Thursday, October 10th, 2019 AT 12:57 PM

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Tiny
STEVE W.
  • EXPERT
Welcome to 2CarPros. To go from a single cylinder misfire to no compression in the engine is either a timing chain or camshaft failure. Personally I would test it myself to verify this as that engine is normally very reliable. It isn't hard to do and you can borrow the tool from many parts stores. https://www.2carpros.com/articles/how-to-test-engine-compression
If it does test low or no compression then it comes down to the rest of the vehicles condition. A used engine or a re-manufactured one are both options. However if you don't have the tools to do the swap it may cost you more than you want to spend.
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Thursday, October 10th, 2019 AT 1:35 PM

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