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2007 Chrysler 300 overheating

Tiny
EEMILLER2636
  • MEMBER
  • 2007 CHRYSLER 300
  • V6
  • RWD
  • AUTOMATIC
  • 69,000 MILES
Cant drive more than a few miles without overheating. Gauge goes up and car starts smoking. Radiator replaced thermostat replaced. Been to shop several times and they say no leaks. Could be gaskets but car has been doin this for months and runs perfect otherwise. Please advise. Im lost!
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Thursday, March 12th, 2015 AT 1:56 PM

4 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How hot does it get in degrees F. Are you losing any coolant? If you lose it internally won't be any external leaks. Can you check for combustion gases in the coolant?

Does the radiator fan/s work?
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Thursday, March 12th, 2015 AT 2:26 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Just to add, as far as overheating, you intake manifold gasket among common repairs, is second only to the thermostat as far as replacement.

Did the shop do a cooling system pressure test?
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Thursday, March 12th, 2015 AT 2:40 PM
Tiny
EEMILLER2636
  • MEMBER
  • 2 POSTS
It gets really hot!Gauge goes all 2 top smoke comes out and light comes on. It runs better when I add coolant. Mechanic did test n says it is no leakes but coolant will not stay in for some reason. And yes fan works.I hear it come on when car starts 2 over heat
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Thursday, March 12th, 2015 AT 2:51 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If your losing coolant and it isn't external, I'd have to check that gasket I mentioned.
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Thursday, March 12th, 2015 AT 3:58 PM

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