Any applicable trouble codes? Some makes and models, if you unplug the coolant temp sensor, the fan will run all the time, it's a default setting, because you unplugged the sensor, the computer doesn't know the engine temp. Some makes and models, if you turn on ac, the fan will run.
1990 chevy w/ OBDI, no fault code for cooling system.
fans not running, fuses, relays and fans all test good. how do I test coolant temp sensor?
1990 Chevrolet Lumina Sedan FWD
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Maintenance & Repair
I have replaced the thermostat and tested all the fuses and relays. The fans won't kick on and it appears like someone has put an additional 5 quarts of oil in. I don't know what the problem could ...
1996 Chevrolet Lumina LS Sedan FWD
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Maintenance & Repair
The car overheats. I have to run the heater to keep it on normal. I have replaced the fan relays and the coolant temperature sensor. Still nothing. I jumped the relays with wire and the fans tu...
1995 Chevrolet Lumina Sedan FWD
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Maintenance & Repair
Have tried "stop leak" and it didn't help...still leaks. How can i fix this crack/ Leak? Is there anything i can put on the crack area on the outside of the connector? The car does not overheat, i...
1996 Chevrolet Lumina
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Maintenance & Repair
I am a female driver and do not know if Midas Muffler is on the up and up. I work next door so it is convenient for me to go there. They said I need a new radiator and quoted me$397.51. They didn't...
1996 Chevrolet Lumina LS Sedan FWD
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Maintenance & Repair
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