1998 Buick Century heat

Tiny
TBEAR1955
  • MEMBER
  • 1998 BUICK CENTURY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 108,000 MILES
The car will not continously heat, replaced water pump, thermosat, back flushed coil, the higher the idil the better the heat, otherwise blows cold
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Monday, January 28th, 2008 AT 12:52 PM

3 Replies

Tiny
BMRFIXIT
  • EXPERT
It sound like a low coolant flow throw the heater core

Engine cool
lower the coolant level
Locate the two hoses running to the heater core
disconnect them at the engine side leaving hoses connected to heater core throw the firewall
use garden water hose and compressed air if possible
run the water and follow by air throw one side and out the other and vice versa
do that two to three times watching what leaving the heater core you are looking for the good flow and clear water to run throw
good luck
let me know
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Monday, January 28th, 2008 AT 7:42 PM
Tiny
TBEAR1955
  • MEMBER
Just drove 1.5 miles to store and back, just about got back and it started to over heat, releived pressure and it started to heat, any thoughts?
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Tuesday, January 29th, 2008 AT 3:17 PM
Tiny
BMRFIXIT
  • EXPERT
It start to overheat with no or little heat on the inside
u release pressure and then you get heat
if so
you were running with low coolant
let it cool off and check coolant add as needed
you have to open air bleeders
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Tuesday, January 29th, 2008 AT 5:38 PM

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