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2003 Buick Century service engine soon caution light

Tiny
IAMVANNAN
  • MEMBER
  • 2003 BUICK CENTURY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 158,000 MILES
The code reader indicated that the coolant temp was too low for the termostat to regulate temp. The temp seemed alright and there are no other problems experienced.
Changed the cooling pump recently.
Wednesday, September 8th, 2010 AT 12:58 PM

3 Replies

Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
What is going on is the temp sensor is sending an incorrect reading to the ecm. Need to replace temp sensor
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Monday, September 13th, 2010 AT 6:49 PM
Tiny
IAMVANNAN
  • MEMBER
  • 2 POSTS
The temps seem OK. The warning appeared, cleared automatically and reappeared. The code reader came out with the warning that the temp was too low for regulation (Code 0125). The temps remained below the halfway mark and above the quarter mark on the scale.

I had recently changed the cooling pump and wondering if it had anything to do with this warning.

Would changing the thermostat fix it?
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Thursday, September 16th, 2010 AT 10:16 AM
Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
Yes after researching ' I believe a t stat will solve the prob
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Thursday, September 16th, 2010 AT 1:01 PM

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