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2004 Mazda 3 Thermostat removed and knock engine.

Tiny
EVOSL
  • MEMBER
  • 2004 MAZDA 3
  • 1.5L
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
Recently I ve got some overheating issue and my mechanic has removed the thermostat valve because it was not working properly. He said that it is not necessary to replace it. But after couple of weeks car is having a rough idle, and knock after like 30 mins of it started. Also the check engine bulb comes out. I have done engine tune up, But it didn't work out and still I am having the issue. So will it be the thermostat removal?
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Sunday, December 21st, 2014 AT 9:39 PM

7 Replies

Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
Th car can not run correctly if it does not achieve normal operating temperature, where it can not do without a thermostat. There are many factors that will not even come into play until the car is up to temp. You must replace the thermostat and go from there.
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Sunday, December 21st, 2014 AT 9:45 PM
Tiny
EVOSL
  • MEMBER
  • 6 POSTS
Thank you for the answer, Also I couldn't mentioned that RPM goes below 1000 at that stage.
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Sunday, December 21st, 2014 AT 10:17 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
You are very welcome. Let us know how it does after you put a thermostat in it.
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Monday, December 22nd, 2014 AT 3:49 PM
Tiny
EVOSL
  • MEMBER
  • 6 POSTS
Planning to fix it in the weekend. Sure I am gonna put the result here.
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Tuesday, December 23rd, 2014 AT 1:56 AM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
That's great.
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Wednesday, December 24th, 2014 AT 9:01 AM
Tiny
EVOSL
  • MEMBER
  • 6 POSTS
The problem was with one of the coil and spark plugs. Replaced the coil and Spark plug. Problem solved. Thanks Homer1967.
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Monday, January 12th, 2015 AT 2:33 AM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
I amglad you got it fixed. Thanks for letting me know and thank you for choosing 2 car pros.
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Monday, January 12th, 2015 AT 6:03 AM

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