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2003 Buick Century overheating

Tiny
CARLACB72
  • MEMBER
  • 2003 BUICK CENTURY
  • 3.1L
  • 6 CYL
  • AUTOMATIC
  • 174,000 MILES
My car is overheating quickly, but no fluid leaking. The heater is blowing out cold air. There is gray smoke coming from where the thermostat is. I think it is just the thermostat, but I dont want to repair then drive and blow it up
Wednesday, July 30th, 2014 AT 11:57 AM

2 Replies

Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
If it is over heating and no hot air out the vent it would indicate you have no coolant. Add water when the engine is cold. If you have a pressure tester apply pressure to look for leak. If you do not run engine until it reaches normal temp and see if the leak will show up. Pay attention around the lower intake gasket for leaks. Very common problem on these vehicles but you should inspect all hoses, radiator, and water pump for leaks as well.

This guide will help

https://www.2carpros.com/articles/engine-overheating-or-running-hot

Good luck to you and keep us posted on what you find.

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Wednesday, July 30th, 2014 AT 12:33 PM
Tiny
EVELYN65
  • MEMBER
  • 3 POSTS
There are many reasons of car overheating, it can dangerous if you allow it to continue for long time. Its good to shut off your air conditioner and open your windows ASAP. If still the engine continue to overheat then turn on the heater and blower. I had the replace the thermostat to fix my car. Hope this information will help you.
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Thursday, July 31st, 2014 AT 3:06 AM

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