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Hi, when it comes to vehicle air conditioning I advise taking it to a
professional with the appropriate experience/qualification...I have heard instances of individuals being blinded by freon.
If your blower only works sometimes might be that the compressor has issues.
Ac is not blowing out cold air. You have to put gages on the system and it shows its has freon.Checked all fuses and relays. The two fans in engingine compartment do not come on when the ac is turned on but does when the engine gets hot. The compressor engages when turned on also. If the magnetic clutch engages the compressor and still no cold air could be still low in freon or the HVAC unit.
Blower motor not working all the time...if I bang the dash near the glove box, it comes on then works great. Is this the switch assembly, the resistor problem, or should I be replacing the blower motor?
Per your description, I believe you may have a blower fan relay that is stuck closed. Remove the relay from the under-hood fuse center and see if the fan stops. If it does stop, put the relay in slowly and see if you here the relay "click" and the fan come back on. Let me know. Regards,