2CarPros - Car Questions & Answers

2004 Nissan Maxima Repair Question


Topics covered: Heater, Rpm, Thermostat.
Mileage: No information provided.

Asked on December 3, 2007

2004 Nissan Maxima heater blows cold air


2004 maxima. When the heater is on, it blows hot air as long as the rpm's stay above 1500. But if they fall below 1500 (i.e. during idle while at a stoplight), the heater blows cold air. I know this is not a thermostat, as the auto climate control doesn't turn on until the car is warm, and as long as the rpm's stay high, the heat is fine. What's the deal?
Avatar Asked by kpaulson

Answer

Replied on December 3, 2007

Better go ahead and check the thermostat and for a partial clogged-up heater core. How's the coolant level?

Tiny Answered by rasmataz
68 questions asked