Injini ayikuthandi ukushisa
Ukushisa kwenjini kuyingozi. Uma sesivele sibona izimpawu ezishaqisayo, kudingeka sibhekane nazo ngokushesha, ngoba lapho kufudumala ngempela, kungase kube sekwephuzile.
Ulwazi olumayelana nezinga lokushisa lenjini ngokuvamile lunikezwa umshayeli ngokudayela noma nge-electronic pointer, noma ezimbili kuphela 
izibani zenkomba. Lapho izinga lokushisa lenjini liboniswa ngomcibisholo noma igrafu, kulula ngomshayeli ukuthi ahlulele isimo esisheshayo sokushisisa injini. Yiqiniso, ukufundwa akudingeki ngaso sonke isikhathi kube okulungile, kodwa uma umcibisholo uqala ukusondela ensimini ebomvu ngesikhathi sokunyakaza, futhi kwakungekho izimpawu ezinjalo ngaphambili, lokhu kufanele kube isignali eyanele yokusesha imbangela ngokushesha ngangokunokwenzeka. Kwezinye izimoto, isibonakaliso esibomvu kuphela esingabonisa ukuthi izinga lokushisa lenjini lidlulile, futhi isikhathi sokushisa kwayo akufanele sishaywe indiva, ngoba akwaziwa ukuthi izinga lokushisa kwenjini lidlule kangakanani umkhawulo ovunyelwe kuleli cala.
Kunezizathu eziningana zokwenyuka kwezinga lokushisa lenjini. Ukuvuza ohlelweni lokupholisa yikona okulula ukukubona, njengoba kuvame ukubonakala ngeso lenyama. Kunzima kakhulu ukuhlola ukusebenza kahle kwe-thermostat, okuvame ukuba nesibopho sokwandisa izinga lokushisa lokusebenza kwenjini. Uma ngesizathu esithile i-thermostat ivula sekwephuzile, i.e. ngaphezu kwezinga lokushisa elibekiwe, noma cha ngokuphelele, khona-ke uketshezi olushisiwe enjinini ngeke lukwazi ukungena kurediyetha ngesikhathi esifanele, lunikeze uketshezi oselupholile kakade lapho.
Esinye isizathu samazinga okushisa enjini aphezulu kakhulu ukwehluleka kwefeni ye-radiator. Ezixazululweni lapho isiphephetha-moya siqhutshwa injini kagesi, ukupholisa okunganele noma okunganele kungabangelwa ukwehluleka komshini oshisayo, ngokuvamile otholakala kurediyetha, noma omunye umonakalo kumjikelezo wamandla.
Ukwenyuka kwezinga lokushisa kwenjini kungabangelwa ukwehla kokusebenza kahle kwe-radiator ngenxa yokungcoliswa ngaphakathi nangaphandle.
Ukwenzeka kwamaphakethe omoya ohlelweni lokupholisa kungase kubangele injini ukuba ishise ngokweqile. Ukukhipha umoya ongafuneki ngaphakathi kwesistimu ngokuvamile kudinga uchungechunge lwezinyathelo. Ukungazi izinqubo ezinjalo kuvimbela deaeration ngempumelelo uhlelo. Kuzokwenzeka okufanayo uma singatholi futhi sisuse imbangela yomoya ongena ohlelweni lokupholisa.
Izinga lokushisa lokusebenza kwenjini ngaphezu kwezinga elimisiwe lingabangelwa futhi ukushiyeka ekulawuleni ukuthungela kanye nesistimu yamandla, okuthi uma kwenzeka amayunithi okulawula nge-elekthronikhi adinga ukuxilonga kochwepheshe.
