 鲜花( 128)  鸡蛋( 0)
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first check coolant level, add if require, E# \( |9 \& Z* ?8 H
FLUSH COOLANT * C% y; i* D+ u. n! p- ]
CHANGE THERMOSTAT
( i+ s3 V/ {7 C( M T3 M, N- Vif still doesn't work, flush coolant again ; m2 m3 n! g. J4 [9 R
if still doesn't work, maybe change heater core(big job) , F6 b- n/ Q' \3 {) X( t
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