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Sistemin ƙaramin kofar da yawa a cikin radiator — awan da suka haɗa da shi da dalilai na ƙaramin kofar da yawa
Gwamnatin ƙwayar ruwa na engine ya taka zuwa wani abu mai sauƙi a cikin traffic ne wanda ya zama lokacin da mutum ya gane cewa radiator fan ya kashe. Sistemin ba ta hanyar wani abu ne—amma ta hanyar hudu abubuwan da suka haɗa da shi: motor na kofar da yawa da kofar da yawa, relay na kontrol, fuse na aiki, da sensor na ƙwayar ruwa na coolant. Karamin kofar da yawa a cikin wani daga cida suka kashe kofar da yawa. Gano wani daga cida su, kuma ba a sanya abubuwan da suka kashe kofar da yawa ba, yana bada maki da yin karamin kofar da yawa a cikin wani lokaci.
Motor, Relay, Fuse, da Sensor na ƙwayar ruwa
A cikin radiator fan moota shi ne aikin DC da ya ci 10 zuwa 30 amps, da aka saita a baya na radiator don gudun taka a cikin core. Ya kashe carbon brushes wanda suka yanka a lokacin da suka daga lokaci — tausayi 1,500 zuwa 3,000 awa na aiki yayi kuma suka haifar da fashewa mai tsoro ko fashewa tausayi. Relay shi ne sakamako na electromagnetic a fuse box na engine bay. Idan ECM ya samu signali da coolant ya zama a kwayar da aminci — tausayi 95°C zuwa 105°C — ya sa relay coil ya daina, ya kusa high-current contacts don ba fan da energy. Fuse ya kare circuit din da ya kashe tausayi 30 zuwa 50 amps.
Alalubada na Gaskiya — A Workshop Ya Samu Bayanin Da Haqiqi
Toyota Camry ya zo a cikin workshop mai gaskiya ta hanyar radiator fan ba a ƙara shi aiki ba. Malaman ya saba kuma motor a cikin wasan gida, amma ala'adu ta dace. Masanin ya yi amfani da tsari na amfani da koyon: ya tattauna fuse (yana daidai), ya saha relay da wata hoto na horn circuit (fan ya faru), ya nuna cewa relay na farko ya kawo kusurin da ba za a iya samun kari da su ba tare da karya mai sau. Wasan gida na farko ya saba motor na daidai saboda su ka ƙara tattauna relay. Sahin daidai ya biya $35 da 30 miniti.
Causa na Kafa na Kafin Radiator
Ishin Fuse, Relay, da Wiring Harness
Ya kawo radiator fan fyuzyu yana da kammalawa a sani amma idan fyuzyu ya kashe kafin yadda aka san shi, wata bayani na gaba daya yake — kuma koyon motor suna ci gaba da karamin yadda suka fiye, ko kuma karamin kwayoyin kada ba ne daga relay zuwa motor. Kada ka sa fyuzyu mai ƙarfi kamar yadda ka nufi fyuzyun da ke kashe. Idan relay ya gudan, yana da biyu hanyoyi: ko koyon ya gudan kuma relay ba za a sami kankanta ba, ko kuma koyon suka gudan kuma a sami kankanta amma ba za a sami karamin kada ba. Idan relay ya gudan kadan-kadan — maki ya rufe kadan-kadan — wani abu ne da aka gudan kafin yadda aka san shi. Karamin kwayoyin kada suka gudan idan karamin kwayoyin kada suka tashi cikin wani abu mai ƙarfi na engine, ko suka ruba cikin karamin kada, ko suka tashi cikin karamin kada. Kuma idan karamin kada suka gudan, yana zama mai ƙarfi kuma yana nufi karamin kada ta yin karamin kada ta maki kuma yana nufi maki ya rufe kadan-kadan.
Kashe na karamin kada da karamin sensor
Kashe na motor da karamin sensor na yadda
Brushes na carbon da aka sawa suna haifar da aiki na lokaci-lokaci kafin gazawar gaba ɗaya mai fan zai iya kunnawa bayan buga gidan motar, yana tabbatar da ganewar asali. Ƙarƙashin ƙuƙwalwa tare da murfin duhu da ƙanshin wutar lantarki mai ƙonewa ya nuna cewa motar ta yi aiki da juriya daga wani ƙuƙwalwar ƙuƙwalwa ko kuma ƙuntataccen iska. A lalacewar sanyaya zafin jiki haska iya hana radiator fan kunnawa ko da lokacin da duk abin da yake aiki. Idan ECM ya karbi siginar 70 °C lokacin da mai sanyaya yake a 105 °C, ba a taɓa kaiwa ga ƙofar fan ba. Kwatanta kayan aikin binciken da ke rayuwa tare da karatun infrared thermometer a cikin gidan thermostat ya tabbatar ko ya kawar da wannan kuskure a cikin minti.
Yin Bincike a Kan Abin da Ya Faru
Matakai Biyar na Maganin Matsala
Na farko, tsafta fuse ta hanyar multimeter — kusurun da suka daga gaba daya zai iya zama ba a garwa ba. Na biyu, saha relay ta hanyar wani baki na musu daga sarari na ba a amfani da shi ba tare da yin amfani da shi ba, kuma yin amfani da shi. Na uku, sanya 12V ta hanyar direct zuwa fan motor connector — idan ya shiga, alamun ya kashe a wajen da ke cikin. Na hudu, karanta live data na coolant temperature sensor ta hanyar scan tool kuma duba shi da infrared measurement a wajen thermostat housing. Na biyu, duba wiring harness ta hanyar garwa daga fuse box zuwa fan connector don rub points da corrosion. A radiator fan wanda ba za a amfani da shi ba yana kusan ba a magana — shi ne kalmomin da suka bayyana abin da ya kashe kuma ba a saha abubuwan da suka kashe ba.
Masu Sabon Gaskiya
Wane ne mahaullata na yawa na radiator fan ya kashe?
Mahaullata na yawa radiator fan sun kashe shine fuse da aka fusce, relay da suka fusce contacts, motor da aka fusce brushes, coolant temperature sensor da aka fusce, ko corrosion na wiring harness a connectors.
Yaya za a tsafta radiator fan relay?
Saha radiator fan kullum da relay mai kama da wani daga wasu circuits ba su da mahimmanci — kamar horn ko headlight — kuma ku ji. Idan fan ya shiga a cikin relay da aka saurare, wani na farko ya gudan. Multimeter zai iya kuma yin amfani don tabbatar da resistance na coil da continuity na contact.
Me ya sa fuse na radiator fan ya kawo kafin kawo?
Kawon kafin kawo na fuse ya nuna cewa fan motor yana samun current mai yawa daga bearings da suka rufe, short circuit na wiring, ko corrosion na connector wanda ya haifar da resistance mai yawa. Ku fara amfani da diagnosis don gano sabon dalili ba a sake sauke fuse ba.
Shin sensor na tsanin yanzu zai iya bari radiator fan?
Ee. Idan coolant temperature sensor ya bada signal na tsanin yanzu ta hanyar 70°C idan coolant shine a 105°C, ECM bai sami threshold na activation ba. Ku kiyaye bayanan scan tool da infrared thermometer don gano wannan abin fuskantar.
Kamar yadda lokaci ne motor na radiator fan zai iya ci gaba?
DC mai karama radiator fan motor ya zama 1,500 zuwa 3,000 awa na aiki. Aiki da kula da kula yana gudanin awa sosai don aiki na highway. Aiki mai tsoro (intermittent) shi ne babban alama na farko na kula na brush kafin ya gudan yanzu.
Wani ne shari'ar tattaunawa na muhimmanci don fan na radiator wanda ba aiki ba?
Dubawa fuse ta hanyar multimeter, saha da dubawa relay, sanya 12V ta hanyar direkta zuwa motor don fara farko daga motor ko daga abubuwan da suka gabata, karanta bayanan live na sensor na coolant temperature, da dubawa wiring harness don gudanin dukkanin dandano da kura na connector.