Quote:
quote:Originally posted by MX-5
The cooling fans regulate the operating temperature during performance racing (1/4 mile drag racing).
The cooling fans are disabled above 35mph by the PCM. There is sufficient airflow to cool the engine above 35mph.
This is detailed in the service manual and powertrain diagnostic manual.
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The fans are NEVER disabled above 35mph. They are always monitor by the PCM. If temp starts raising, fans are turn on but NOT at full speed. If temp keep raising and goes up to 215F, then they will be turn on at FULL speed no matter if you are stopped or crusing beyond 35 MPH. Those manuals sometimes are wrong. If weather is hot, At 50mph you can hear them working if you have your window open.
Regards [^]