Heater blows cold when stopped

Asked by Dec 18, 2012 at 03:00 PM about the 1995 Lexus SC 400 RWD

Question type: Maintenance & Repair

The heater get very hot driving but when I come to a stop light of slow down, it gets cooler and almost cold when stopped. Once I take off, it does get hot again... any suggestions?
Thanks for your help!

3 Answers

10

Thermostat might be going bad

1 of 1 people found this helpful.
102,845

Sounds like the impeller on the water pump is worn. Time for a new one.

85

check your water. it might be low. if not then it's water pump.

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