 鲜花( 128)  鸡蛋( 0)
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first check coolant level, add if require
" M8 y) U0 D% r, JFLUSH COOLANT
7 E0 E* r$ @3 r8 y* Z ]6 kCHANGE THERMOSTAT
+ ]* m! q: h- l, n" l/ |& Jif still doesn't work, flush coolant again
! G9 Q) c$ q/ B2 O) b/ `# n, z: _if still doesn't work, maybe change heater core(big job)
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