这个老白也还算熟悉,, f# P8 W; H1 |1 F7 y9 m
1. low coolant level 2 J. c' o3 W K5 v2. thermostat is stuck open $ m+ J% M7 _) G1 S# D" x# n/ e* y5 t3. fan motor does not run well 9 p5 q$ ?8 x H4 i# c4. heater contorl valve blocked( V# e, k) U" r' v7 p' J/ e; v
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