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My car underwent a cylinder test for compression

Tiny
ANONYMOUS
  • MEMBER
  • 1999 HYUNDAI ACCENT
  • 265,000 MILES
My car underwent a cylinder test for compression. They then told me that the 4th cylinder is not getting fed any compression. It could either be worn out piston rings or something broken at the valves. Are there any other causes to this problem because now the Hyundai dealership said that they gonna take more than 5 days due to the time it will take at the engineering shop too. What makes this a complex procedure. I am considering taking it to a reputable mechanic as I think it will work out cheaper in half the time. What are your thoughts or opinions on this matter

Regards

Parwez
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Thursday, January 3rd, 2013 AT 1:16 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If the cylinder has no compression, the most common cause would be burnt valves. Bad piston rings would usually affect all cylinders and a wet test would still show some results. The dealer is definitely going to cost more than other repair shops and if you have a reputable shop to go to, check them out. Ask for a quotation and time required.
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Thursday, January 3rd, 2013 AT 2:32 PM

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