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Overheating

Tiny
DANIEL TREVIñO
  • MEMBER
  • 2002 CHRYSLER CONCORDE
  • 3.5L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 86,000 MILES
I already change the radiator. Replace the fans, thermostat, hoses and still it heats up.
Saturday, January 14th, 2017 AT 7:12 PM

5 Replies

Tiny
JOHNNY G.JR
  • MECHANIC
  • 320 POSTS
Look in radiator for possible combustion gases. Test your compression on cylinders for possible head gasket failure. Are you losing any coolant and cannot find the source? Any steam coming out exhaust?
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Saturday, January 14th, 2017 AT 7:43 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,443 POSTS
Is there any sign of leakage in the water pump weep hole below the thermostat housing?

If not then run a combustion gas test to be sure you are not chasing a head gasket failure.
https://www.youtube.com/watch?v=B4FoUc6fRNs
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Saturday, January 14th, 2017 AT 8:09 PM
Tiny
DANIEL TREVIñO
  • MEMBER
  • 2 POSTS
Sometimes steam comes out of the exhaust and the water reservar overflows.
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Saturday, January 14th, 2017 AT 8:14 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,443 POSTS
Run the combustion test, but those are both signs you have a bad head gasket. Gas test would verify it.
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Saturday, January 14th, 2017 AT 9:52 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,490 POSTS
FROM DANIEL TREVIñO

Thank you!
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Sunday, January 15th, 2017 AT 4:19 PM

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