Compression Ignition Addict
Join Date: Dec 2008
Location: port arthur texas
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Check for free air flow thru the a/c condensor; CAC and radiator. Check all temps oil;coolant;transmission and a/c condensor temps as well as iat temps.
Check fan wireing for chafes/shorts Fan speed and duration of run time is determined by the pcm and what it sees from it's sensors.
A field test you may try is run some water across the a/c condensor if the fan cuts off your condensor is getting too hot keeping the fan engaged.
Lord I shall lead them to the water but I will not try to make them drink