Question about Honda Cars & Trucks
Fan blows but it doesn't cool like the ac is on.
The most common cause of your lack of cooling is no or low refrigerant charge in the system, in most cases this is due to the front shaft seal of the AC compressor on the engine leaking, if it is leaking you will see oil deposited around the front of the compressor behind the drive pulley magnetic clutch. Of course there are other places that leak and other problems that cause lack of cooling, but check for a lost charge due to leakage first.
Posted on Feb 10, 2012
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Posted on Jan 02, 2017
Too many reasons why but it probably needs to go in for repair. compressors will cycle on and off if the system is under or over filled. If there is a flow restriction, a collapsed high pressure hose, clog somewhere in the system(some vehicle owners put sealant or refrigerant with sealant in it) bad idea. Good luck.
Posted on Apr 29, 2009
check the temperature switch for power and test power at fan relay, you can also run wire from battery to fan directly and tap to see if fan works
Posted on Jul 07, 2009
The fan may run with jumper wires but if it''s blowing the 30 Amp Maxifuse it's needs a new or used fan motor.It's pulling too many amps.I have almost never seen a fan relay concern.Only other thing you may check is the wiring down near the fan shoud I have seen the 2 wires get loose from the conduit & melt onto exhaust manifold.Hope tHis Helps
Posted on May 12, 2009
Yes there is a relay, but first answer this question, do you know the fans don't come on until the engine temp is above 230+ degrees F.? That is almost in the hot zone. run a scanner on the engine and watch the ECT sensor temp reading to verify proper cooling fan operation, a quick test to see if the system works is to unplug the ECT sensor, the fans will go into failure mode and turn on to avoid damage to the engine.
Posted on Sep 02, 2008
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